The muskox (Ovibos moschatus), also spelled musk ox and musk-ox (in Inuktitut: ᐅᒥᖕᒪᒃ, umingmak), is an Arctic hoofed mammal of the family Bovidae,[6] noted for its thick coat and for the strong odor emitted during the seasonal rut by males, from which its name derives. This musky odor is used to attract females during mating season. Its Inuktitut name "umingmak" translates to "the bearded one".[7] Muskoxen primarily live in Greenland and the Canadian Arctic of the Northwest Territories and Nunavut,[8] with introduced populations in the American state of Alaska, the Canadian territory of Yukon, the Scandinavian Peninsula, and Siberia.

Musk ox
Temporal range: 0.2–0 Ma
Middle Pleistocene – Recent
Ovibos moschatus qtl3
Muskox in the Lüneburg Heath wildlife park in Germany
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Bovidae
Subfamily: Caprinae
Genus: Ovibos
Blainville, 1816[2]
O. moschatus
Binomial name
Ovibos moschatus
(Zimmermann, 1780)
Muskox distribution combined
Range map: blue indicates areas where muskox introduction has been attempted in the 20th century; red indicates the previous established range.


  • Bosovis Kowarzik, 1911[3]


  • Bos moschatus Zimmermann, 1780[4]
  • Bosovis moschatus (Zimmermann, 1780) Kowarzik, 1911


Extant relatives

As members of the subfamily Caprinae of the family Bovidae, muskoxen are more closely related to sheep and goats than to oxen; however, they are placed in their own genus, Ovibos (Latin: "sheep-ox"). The muskox is one of the two largest extant members of Caprinae, along with the similarly sized takin.[9] While the takin and muskox were once considered possibly closely related, the takin lacks common ovibovine features, such as the muskox's specialized horn morphology, and genetic analysis shows that their lineages actually separated early in caprine evolution. Instead, the muskox's closest living relatives appear to be the gorals of the genus Naemorhedus, nowadays common in many countries of central and east Asia. The vague similarity between takin and muskox must therefore be considered an example of convergent evolution.[10]

Fossil history and extinct relatives

Preptoceras sinclairi
Euceratherium skeleton

The modern muskox is the last member of a line of ovibovines that first evolved in temperate regions of Asia and adapted to a cold tundra environment late in its evolutionary history. Muskoxen ancestors with sheep-like high-positioned horns (horn cores being mostly over the plane of the frontal bones, rather than below them as in modern muskoxen) first left the temperate forests for the developing grasslands of Central Asia during the Pliocene, expanding into Siberia and the rest of northern Eurasia. Later migration waves of Asian ungulates that included high-horned muskoxen reached Europe and North America during the first half of the Pleistocene. The first well known muskox, the "shrub-ox" Euceratherium, crossed to North America over an early version of the Bering Land Bridge two million years ago and prospered in the American southwest and Mexico. Euceratherium was larger yet more lightly built than modern muskoxen, resembling a giant sheep with massive horns, and preferred hilly grasslands.

A genus with intermediate horns, Soergelia, inhabited Eurasia in the early Pleistocene, from Spain to Siberia, and crossed to North America during the Irvingtonian (1.8 million years to 240,000 years ago), soon after Euceratherium. Unlike Euceratherium, which survived in America until the Pleistocene-Holocene extinction event, Soergelia was a lowland dweller that disappeared fairly early, displaced by more advanced ungulates, such as the "giant muskox" Praeovibos (literally "before Ovibos"). The low-horned Praeovibos was present in Europe and the Mediterranean 1.5 million years ago, colonized Alaska and the Yukon one million years ago and disappeared half a million years ago. Praeovibos was a highly adaptable animal that appears associated with cold tundra (reindeer) and temperate woodland (red deer) faunas alike. During the Mindel glaciation 500,000 years ago, Praeovibos was present in the Kolyma river area in eastern Siberia in association with many Ice Age megafauna that would later coexist with Ovibos, in the Kolyma itself and elsewhere, including wild horses, reindeer, woolly mammoth and stag-moose. It is debated, however, if Praeovibos was directly ancestral to Ovibos, or both genera descended from a common ancestor, since the two occurred together during the middle Pleistocene. Defenders of ancestry from Praeovibos have proposed that Praeovibos evolved into Ovibos in one region during a period of isolation and expanded later, replacing the remaining populations of Praeovibos.[10]

Two more Praeovibos-like genera were named in America in the 19th century, Bootherium and Symbos, which are now identified as the male and female forms of a single, sexually dimorphic species, the "woodland muskox", Bootherium bombifrons. Bootherium inhabited open woodland areas of North America during the late Pleistocene, from Alaska to Texas and maybe even Mexico, but was most common in the Southern United States, while Ovibos replaced it in the tundra-steppe to the north, immediately south of the Laurentian ice sheet.[10][11]

Modern Ovibos appeared in Germany almost one million years ago and was common in the region through the Pleistocene. By the Mindel, muskoxen had also reached the British Isles. Both Germany and Britain were just south of the Scandinavian ice sheet and covered in tundra during cold periods, but Pleistocene muskoxen are also rarely recorded in more benign and wooded areas to the south like France and Green Spain, where they coexisted with temperate ungulates like red deer and aurochs. Likewise, the muskox is known to have survived in Britain during warm interglacial periods.[10]

Today's muskoxen are descended from others believed to have migrated from Siberia to North America between 200,000[12] and 90,000 years ago,[13] having previously occupied Alaska (at the time united to Siberia and isolated periodically from the rest of North America by the union of the Laurentide and Cordilleran Ice Sheets during colder periods) between 250,000 and 150,000 years ago. After migrating south during one of the warmer periods of the Illinoian glaciation, non-Alaskan American muskoxen would be isolated from the rest in the colder periods. The muskox was already present in its current stronghold of Banks Island 34,000 years ago, but the existence of other ice-free areas in the Canadian Arctic Archipelago at the time is disputed.[10]

Along with the bison and the pronghorn,[14] the muskox was one of a few species of Pleistocene megafauna in North America to survive the Pleistocene/Holocene extinction event and live to the present day.[15] The muskox is thought to have been able to survive the last glacial period by finding ice-free areas (refugia) away from prehistoric peoples.[13]

Fossil DNA evidence suggests that muskoxen were not only more geographically widespread during the Pleistocene, but also more genetically diverse.[16] During that time, other populations of muskoxen lived across the Arctic, from the Ural Mountains to Greenland. By contrast, the current genetic makeup of the species is more homogenous. Climate fluctuation may have affected this shift in genetic diversity: research indicates colder periods in Earth's history are correlated with more diversity, and warmer periods with more homogeneity.[15]

Physical characteristics

The Childrens Museum of Indianapolis - Musk ox skull
This skull, in the collection of The Children's Museum of Indianapolis, displays the muskox's large horns.

Both male and female muskoxen have long, curved horns. Muskoxen stand 1.1 to 1.5 m (4 to 5 ft) high at the shoulder, with females measuring 135 to 200 cm (4.4 to 6.6 ft) in length, and the larger males 200 to 250 cm (6.6 to 8.2 ft). The small tail, often concealed under a layer of fur, measures only 10 cm (3.9 in) long. Adults, on average, weigh 285 kg (630 lb) and range from 180 to 410 kg (400 to 900 lb).[9][17] The thick coat and large head suggests a larger animal than the muskox truly is; the bison, to which the muskox is often compared, can weigh up to twice as much.[18] However, heavy zoo-kept specimens have weighed up to 650 kg (1,400 lb).[5] Their coat, a mix of black, grey, and brown, includes long guard hairs that almost reach the ground. Rare "white muskoxen" have been spotted in the Queen Maud Gulf Bird Sanctuary.[19] Muskoxen are occasionally domesticated for wool, meat, and milk.[20][21] The wool, qiviut, is highly prized for its softness, length, and insulation value. Prices for yarn range between $40 and $80 per ounce (28 g).[22][23][24]

A muskox can reach speeds of up to 60 km/h (37 mph).[25] Their life expectancy is 12–20 years.


Ovibos moschatus (fossil musk ox skull) (prehistoric; Siberia
Fossil Ovibos moschatus skull from prehistoric Siberia


During the Pleistocene period, muskoxen were much more widespread. Fossil evidence shows that they lived across the Siberian and North American Arctic, from the Urals to Greenland.[15] The ancestors of today's muskoxen came across the Bering Land Bridge to North America between 200,000[12] and 90,000 years ago.[13] During the Wisconsinan, modern muskox thrived in the tundra south of the Laurentide ice sheet, in what is now the Midwest, the Appalachians and Virginia, while distant relatives Bootherium and Euceratherium lived in the forests of the Southern United States and the western shrubland, respectively.[11] Though they were always less common than other Ice Age megafauna, muskox abundance peaked during the Würm II glaciation 20,000 years ago and declined afterwards, especially during the Pleistocene/Holocene extinction event, where its range was greatly reduced and only the populations in North America survived. The last known muskox population in Europe died out in Sweden 9,000 years ago,[10] and the last one in Asia, which lived on Siberia's Taymyr Peninsula, about 2,000 years ago.[16]

After the disappearance of the Laurentide ice sheet, the muskox gradually moved north across the Canadian Arctic Archipelago, arriving in Greenland from Ellesmere Island at about 350 AD, during the late Holocene. Their arrival in northwestern Greenland probably occurred within a few hundred years of the arrival of the Dorset and Thule cultures in the present-day Qaanaaq area. Human predation around Qaanaaq may have restricted muskoxen from moving down the west coast, and instead kept them confined to the northeastern fringes of the island.[26]

Recent native range in North America

Greenland-musk-ox hg
Muskox family in east Greenland

In modern times, muskoxen were restricted to the Arctic areas of Northern Canada, Greenland, and Alaska. The Alaskan population was wiped out in the late 19th or early 20th century. Their depletion has been attributed to excessive hunting, but an adverse change in climate may have contributed.[27][28] However, muskoxen have since been reintroduced to Alaska. The United States Fish and Wildlife Service introduced the muskox onto Nunivak Island in 1935 as a means for subsistence living.[29] Other reintroduced populations are in Arctic National Wildlife Refuge,[30] Bering Land Bridge National Preserve, Yukon's Ivvavik National Park, a wildlife conservation center in Anchorage,[31] Aulavik National Park in Northwest Territories, Kanuti National Wildlife Refuge, Gates of the Arctic National Park, and Whitehorse, Yukon's wildlife preserve.[32]

There have been at least two domestication endeavours. In the 1950s an American researcher and adventurer was able to capture musk ox calves in Northern Canada for relocation to a property he prepared in Vermont.[33][34] One condition imposed by the Canadian government was he was not allowed to kill adults defending their young. When nets and ropes proved useless, he and his crew herded family groups into open water where calves were successfully separated from the adults. Once airfreighted to Montreal and trucked to Vermont, the young animals habituated to the temperate conditions. Although the calves thrived and grew to adulthood, parasite and disease resistance problems impaired the overall success of the effort. The surviving herd was eventually moved to a farm in Palmer, Alaska, which has been successful since the mid-1950s.[35]

Introductions in Eurasia

The species was introduced from Banks Island to the Dovre mountain range of Norway in 1932 but were hunted to extinction there during the Second World War. It was reintroduced to Norway in 1947; this population expanded into Härjedalen, Sweden, in 1971. It was introduced in Svalbard in 1925–26 and 1929, but this population died out in the 1970s.[36] They were also introduced in Iceland around 1930 but did not survive.[37]

In Russia, animals imported from Banks and Nunivak were released in the Taymyr Peninsula in 1974 and 1975, and some from Nunivak were released in Wrangel Island in 1975. Both locations are north of the Arctic Circle. Today the population on Wrangel Island is about 1100,[38], and that on the Taymyr Peninsula is estimated at 11-14 thousand.[39] A few muskoxen herds migrated from the Taymyr Peninsula far to the south to the Putorana Plateau.[38] Once established, these populations have been, in turn, used as sources for further introductions in Siberia between 1996 and 2010.[40] One of the last of these actions was the release of six animals within the "Pleistocene Park" project area in the Kolyma River in 2010, where a team of Russian scientists led by Sergey Zimov aims to prove that muskoxen, along with other Pleistocene megafauna that survived into the early Holocene in northern Siberia,[41] did not disappear from the region due to climate change, but because of human hunting.[42]

Introductions in eastern Canada

Ancient muskox remains have never been found in eastern Canada, despite the ecological conditions in the northern Labrador Peninsula being suitable for them. In 1967, 14 animals were captured near Eureka, Ellesmere Island by the Institute for Northern Agricultural Research (INAR), and brought to a farm in Old Fort Chimo Kuujjuaq, northern Quebec, for domestication to provide a local cottage industry based on qiviut, one of the world's finest natural fibers. The animals thrived and the qiviut industry showed early success with the training of Inuit knitters and marketing, it soon became clear that the Quebec government had never intended that the muskoxen be domestic, but had used INAR to capture musk oxen to provide a wild population for hunting. Government officials demanded that INAR leave Quebec and the farm be closed. Subsequently, 54 animals from the farm were released in three places in northern Quebec between 1973 and 1983, and the remaining were ceded to local zoos. Between 1983 and 1986, the released animals increased from 148 to 290, at a rate of 1.25 per year, and by 2003, an estimated 1400 muskoxen were in Quebec. Additionally, 112 adults and 25 calves were counted in the nearby Diana Island in 2005, having arrived there by their own means from the continent. Vagrant adults are sometimes spotted in Labrador, though no herds have been observed in the region.[43]


During the summer, muskoxen live in wet areas, such as river valleys, moving to higher elevations in the winter to avoid deep snow. Muskoxen will eat grasses, Arctic willows, woody plants, lichens, and mosses. When food is abundant, they prefer succulent and nutritious grasses in an area. Willows are the most commonly eaten plants in the winter. Muskoxen require a high threshold of fat reserves in order to conceive, which reflects their conservative breeding strategy. Winter ranges typically have shallow snow to reduce the energy costs of digging through snow to reach forage.[1] The primary predators of muskoxen are Arctic wolves, which may account for up to half of all mortality for the species. Other occasional predators, likely mainly predators of calves or infirm adults, can include grizzly bears and polar bears.[5]

Social behavior and reproduction

Nunivak Island, Alaskan muskoxen in the 1930s, shown here in defensive formation

Muskoxen live in herds of 12–24 in the winter and 8–20 in the summer.[44] They do not hold territories, but they do mark their trails with preorbital glands.[45] Male and female muskoxen both have separate age-based hierarchies, with mature oxen being dominant over juveniles.[44] Dominant oxen tend to get access to the best resources[5] and will displace subordinates from patches of grass during the winter.[44] Muskox bulls assert their dominance in many different ways. One is a "rush and butt", in which a dominant bull rushes a subordinate from the side with its horns, and will warn the subordinate so it can have a chance to get away.[46] Bulls will also roar, swing their heads, and paw the ground.[5] Dominant bulls sometimes treat subordinate bulls like cows. A dominant bull will casually kick a subordinate with its foreleg, something they do to cows during mating.[47] Dominant bulls will also mock copulate subordinates and sniff their genitals.[47] A subordinate bull can change his status by charging a dominant bull.[48]

The mating (or "rutting") season of the muskoxen begins in late June or early July. During this time, dominant bulls will fight others out of the herds and establish harems of usually six or seven cows and their offspring. Fighting bulls will first rub their preorbital glands against their legs while bellowing loudly, and then display their horns.[48] The bulls then back up 20 meters, lower their heads, and charge into each other, and will keep doing so until one bull gives up.[46] Subordinate and elderly bulls will leave the herds to form bachelor groups or become solitary.[5] However, when danger is present, the outside bulls can return to the herd for protection.[49] Dominant bulls will prevent cows from leaving their harems.[5] During mating, a bull will casually kick an estrous cow with his foreleg to calm her down and make her more receptive to his advances.[47] The herds reassemble when summer ends.[49]

While the bulls are more aggressive during the rutting season and make the decisions in the groups, the females take charge during gestation.[5] Pregnant females are aggressive and decide what distance the herd travels in a day and where they will bed for the night.[50] The herds move more frequently when cows are lactating, to allow them to get enough food to nurse their offspring.[50] Cows have an eight- to nine-month gestation period, with calving occurring from April to June. Cows do not calve every year. When winters are severe, cows will not go into estrus and thus not calve the next year. When calving, cows stay in the herd for protection. Muskox are precocial, and calves are able to keep up with the herd within just a few hours after birth. The calves are welcomed into the herd and nursed for the first two months.[5] After that, a calf then begins eating vegetation and nurses only occasionally. Cows communicate with their calves through braying. The calf's bond with its mother weakens after two years.

Muskoxen have a distinctive defensive behavior: when the herd is threatened, the bulls and cows will face outward to form a stationary ring or semicircle around the calves.[51] The bulls are usually the front line for defense against predators with the cows and juveniles gathering close to them.[5] Bulls determine the defensive formation during rutting, while the cows decide the rest of the year.[49]

Components of glandular secretions

The preorbital gland secretion of muskoxen has a "light, sweetish, ethereal" odor.[7] Analysis of preorbital gland secretion extract showed the presence of cholesterol (which is nonvolatile), benzaldehyde, a series of straight-chain saturated gamma-lactones ranging from C8H14O2 to C12H22O2 (with C10H18O2 being most abundant), and probably the monounsaturated gamma lactone C12H20O2.[7] The saturated gamma-lactone series has an odor similar to that of the secretion.[7]

The odor of dominant rutting males is "strong" and "rank".[7] It derives from the preputial gland and is distributed over the fur of the abdomen via urine. Analysis of extract of washes of the prepuce revealed the presence of benzoic acid and p-cresol, along with a series of straight-chain saturated hydrocarbons from C22H46 to C32H66 (with C24H50 being most abundant).[7]

Conservation status

Historically, this species declined because of overhunting, but population recovery has taken place following enforcement of hunting regulations.[1] Management in the late 1900s was mostly conservative hunting quotas to foster recovery and recolonization from the historic declines.[1] The current world population of muskoxen is estimated at between 80,000[52] and 125,000,[29] with an estimated 47,000 living on Banks Island.[53]

In Greenland there are no major threats, although populations are often small in size and scattered, which makes them vulnerable to local fluctuations in climate. Most populations are within national parks, where they are protected from hunting.[1] Muskoxen occur in four of Greenland's protected areas, with indigenous populations in Northeast Greenland National Park, and three introduced populations in Arnangarnup Qoorua Nature Reserve, and Kangerlussuaq and Maniitsoq Caribou Reserves. Within these areas, muskoxen receive full protection.[1]


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External links

Arctic vegetation

In the Arctic, the low tundra vegetation clothes a landscape of wide vistas, lit by the low-angle light characteristic of high latitudes. Much of the Arctic shows little impact from human activities, making it one of the few places on earth one can see intact ecosystems. Arctic plants are adapted to short, cold growing seasons. They have the ability to withstand extremely cold temperatures in the winter (winter hardiness), but what is even more important is the ability to be able to function in limiting summer conditions.

Arctic plants have a compressed growing season; they initiate growth rapidly in the spring, and flower and set seed much sooner than plants that grow in warmer conditions. Their peak metabolic rate also occurs at a much lower temperature than plants from farther south. Compact cushions of vegetation keep the plants close to the warm soil and shield the tender central growing shoot. The height of Arctic plants is also governed by snow depth. Plants that protrude above the snow are subject to strong winds, blowing snow, and being eaten by caribou, muskox, or ptarmigan. Mosses and lichens are common in the Arctic. These plants have the ability to stop growth at any time and resume it promptly when conditions improve. They can even survive being covered by snow and ice for over a year.

Arctic wolf

The Arctic wolf (Canis lupus arctos), also known as the white wolf or polar wolf, is a subspecies of grey wolf native to Canada's Queen Elizabeth Islands, from Melville Island to Ellesmere Island. It is a medium-sized subspecies, distinguished from the northwestern wolf by its smaller size, its whiter colouration, its narrower braincase, and larger carnassials. Since 1930, there has been a progressive reduction in size in Arctic wolf skulls, which is likely the result of wolf-dog hybridization.

Bjorne Peninsula

The Bjorne Peninsula is located on the western coast of Ellesmere Island, a part of the Qikiqtaaluk Region of the Canadian territory of Nunavut. It protrudes northwest into Norwegian Bay from the island's mainland. Goose Point, a narrow isthmus, is the furthest northwest landform. Other areas of the peninsula include Schei Point (north), Little Bear Cape (west), and Great Bear Cape (southwest). The peninsula's midsection is approximately 144 m (472 ft) above sea level.Muskox frequent the peninsula.Nearby, Graham Island is found to the west and Axel Heiberg Island is to the northwest. Hoved Island lies between the peninsula and Ellesmere Island's mainland.

Bootherium bombifrons

Bootherium is an extinct bovid genus from the middle to late Pleistocene of North America which contains a single species, Bootherium bombifrons. Vernacular names for Bootherium include Harlan's muskox, woodox, woodland muskox, helmeted muskox, or bonnet-headed muskox. Bootherium was one of the most widely distributed muskox species in North America during the Pleistocene era.

Cook Peninsula

The Cook Peninsula is located on the eastern coast of Ellesmere Island, a part of the Qikiqtaaluk Region of the Canadian territory of Nunavut. North of Princess Marie Bay, it stretches eastward into Nares Strait. The peninsula is approximately 64 square kilometres (25 sq mi) in size, and has two lowland areas frequented by muskox.

Coppermine River

The Coppermine River is a river in the North Slave and Kitikmeot regions of the Northwest Territories and Nunavut in Canada. It is 845 kilometres (525 mi) long. It rises in Lac de Gras, a small lake near Great Slave Lake, and flows generally north to Coronation Gulf, an arm of the Arctic Ocean. The river freezes in winter but may still flow under the ice.

The community of Kugluktuk (formerly Coppermine) is located at the river's mouth.

The river was named for the copper ores which are located along the lower river. Samuel Hearne travelled down the river to the Arctic Ocean in 1771. Sir John Franklin also travelled down the river during the Coppermine Expedition of 1819–1822. In 1826 its mouth was reached by John Richardson, who followed the coast from the Mackenzie River as part of the 1825–1827 Mackenzie River expedition.

Bloody Falls, part of the Kugluk/Bloody Falls Territorial Park, is located 18.5 kilometres (11.5 mi) from Kugluktuk, and was home to the Kogluktogmiut a sub-group of the Copper Inuit. It is the site of the Bloody Falls Massacre, when Matonabbee, Samuel Hearne's guide, and his fellow Chipewyan warriors ambushed and massacred the local Inuit.

The river is used for wilderness canoeing and rafting, although it sees only a few groups each year. It features major rapids, such as Rocky Defile, Sandstone, Muskox, and Escape Rapids, as well as many unnamed smaller sets. Bloody Falls is the final major rapid of the river, and must be portaged.

The Coppermine River is the namesake of Coppermine Herald at the Canadian Heraldic Authority.

The river figures in Jack London's short story, "Love of Life," in which the main character, exhausted and abandoned, finds himself standing in a stream, "a feeder to the Coppermine River, which in turn flowed north and emptied into Coronation Gulf and the Arctic Ocean." Later in the story, the Coppermine is described as a "wide and sluggish river".

Ellice River

The Ellice River (Inuktitut: Kuunnuaq) is a waterway in the Kitikmeot Region of Nunavut, Canada. It rises close to the Back River between Beechey Lake and Pelly Lake, and flows northward into the Queen Maud Gulf. Its mouth opens between Campbell Bay and Gernon Bay. The land between the river and Sherman Inlet is generally flat and marshy. Muskox and barren-ground caribou frequent the area.The river is named in honour of Edward Ellice, Jr..


Hiorthhamn is an abandoned settlement located on the east side of Adventfjorden on the island of Spitsbergen in Svalbard, Norway. It served as a coal mining camp from 1917 to 1921 operated by De Norske Kullfelter Spitsbergen. The settlement was named for the company's director, Fredrik Hiorth (1851–1923). Muskox were introduced in the area from Greenland in 1929, and the camp took the name Moskushamn in 1938. It reverted to its original name in 2002.

Hood River (Nunavut)

The Hood River of Nunavut, Canada, is a 400-kilometre (250 mi) long river draining into the Arctic Ocean from its headwaters in the interior of Canada's tundra at Takijuq Lake, close to the Northwest Territories border. The river ends at Arctic Sound near the community of Bathurst Inlet. The river is above the Arctic Circle and tree line.

Lake trout are plentiful and can be almost a metre long. The upper lakes of the Hood can be frozen until July, and on the banks of the river, grizzlies, wolves, wolverines, and muskox are plentiful. In the short Arctic summer, canoeists braving the mighty river can see the migration of the barren-ground caribou through the area. Muskox and wolves are also common sights.

There are numerous rapids, waterfalls and glaciers along the river. Wilberforce Gorge is a steep, high gorge that runs for 3 kilometres (2 mi) at almost 76 metres (249 ft) deep. Wilberforce Falls, at the head of the gorge, is the highest waterfall north of the Arctic Circle falling 49 m (161 ft) in two 24-metre (79 ft) drops.

During Sir John Franklin's first overland expedition, the Coppermine Expedition of 1819–1822, he came back up this river, after going down the Coppermine River, then east along the Arctic Coast to Point Turnagain, while searching for the Northwest Passage. The river gets its name from Midshipman Robert Hood, who was possibly murdered on the overland trek back to Fort Enterprise.

Mackenzie Large Igneous Province

The Mackenzie Large Igneous Province (MLIP) is a major Mesoproterozoic large igneous province of the southwestern, western and northwestern Canadian Shield in Canada. It consists of a group of related igneous rocks that were formed during a massive igneous event starting about 1,270 million years ago. The large igneous province extends from the Arctic in Nunavut to near the Great Lakes in Northwestern Ontario where it meets with the smaller Matachewan dike swarm. Included in the Mackenzie Large Igneous Province are the large Muskox layered intrusion, the Coppermine River flood basalt sequence and the massive northwesterly trending Mackenzie dike swarm.

As a large igneous province, it is an extremely large area of related igneous rocks that were emplaced over an extremely short geological time span. The igneous rocks comprising the Mackenzie Large Igneous Province originated from processes not associated with normal plate tectonics and seafloor spreading. It is one of the several large igneous provinces scattered throughout the Canadian landscape, which can be thousands of kilometres in volume and area. The Mackenzie Large Igneous Province is one of the world's largest Proterozoic magmatic provinces, as well as one of the most well-preserved continental flood basalt terrains on Earth. Igneous rocks of the Mackenzie Large Igneous Province are generally mafic in composition, including basalt and gabbro.

Even though the Mackenzie Large Igneous Province is classified as a large igneous province like other extremely large accumulations of igneous rocks on Earth, it is much larger than large igneous province standards. The standard size classification for large igneous provinces is a minimum areal extent of 100,000 km2 (39,000 sq mi). However, the Mackenzie dike swarm itself occupies an area of at least 2,700,000 km2 (1,000,000 sq mi), making the Mackenzie Large Igneous Province larger than the Ontong Java Plateau (in the southwestern Pacific Ocean) and the U.S. state of Alaska.


Musk is a class of aromatic substances commonly used as base notes in perfumery. They include glandular secretions from animals such as the musk deer, numerous plants emitting similar fragrances, and artificial substances with similar odors. Musk was a name originally given to a substance with a strong odor obtained from a gland of the musk deer. The substance has been used as a popular perfume fixative since ancient times and is one of the most expensive animal products in the world. The name originates from the Late Greek μόσχος 'moskhos', from Persian 'mushk', ultimately from Sanskrit मुष्क muṣka meaning "a testicle", from a diminutive of मूष् mūṣ ("mouse"). The deer gland was thought to resemble a scrotum. It is applied to various plants and animals of similar smell (e.g. muskox) and has come to encompass a wide variety of aromatic substances with similar odors, despite their often differing chemical structures and molecular shapes.

Natural musk was used extensively in perfumery until the late 19th century when economic and ethical motives led to the adoption of synthetic musk, which is now used almost exclusively. The organic compound primarily responsible for the characteristic odor of musk is muscone.

Modern use of natural musk pods occurs in traditional Chinese medicine.

Muskox intrusion

The Muskox intrusion is a layered intrusion in Nunavut, Canada. It is located 144 km (89 mi) northeast of Great Bear Lake and 90 km (56 mi) south of Kugluktuk on Coronation Gulf. It was formed during a large magmatic event during the Proterozoic by hotspot or mantle plume volcanism that emplaced the widespread Coppermine River Group flood basalts.

The intrusion is a tilted trough shaped body with an exposed length of 120 km (75 mi) and a thickness or original vertical dimension of over 6 km (3.7 mi). Rock types include picrite, peridotite, dunite, pyroxenite, gabbro and granophyre. A feeder dike of olivine gabbro is exposed "below" the now tilted sequence.Potassium argon dating in the region provides an age of 1095 - 1155 Ma for the Muskox intrusion, 1100 - 1200 Ma for the Mackenzie dike swarm and 740 - 1200 Ma for the Coppermine basalt flows (younger dates are interpreted as having been reset by later intrusion of gabbro sills at 604 - 718 Ma). Further stratigraphic and structural evidence provides further support that the Muskox, the MacKenzie dikes and the Coppermine flows are of the same magmatic event that formed the Mackenzie Large Igneous Province and the Muskox is interpreted as occupying the magma chamber which fed the volcanism.

Praeovibos priscus

Praeovibos priscus, also known as the giant muskox, is an extinct mammal species of the family Bovidae. This species used to be regarded as the ancestor to the modern muskox (Ovibos moschatus) but new findings suggest that these two species may be the same age.The genus Praeovibos existed since the early Pleistocene, around 1.5 million years ago. The giant muskox spread to Alaska around 1 million years ago. At the end of the Pleistocene this genus went extinct. Remains of the giant muskox were found with early human remains, indicated that this species was hunted by humans.


Qiviuq [sg] or qiviut [pl] ( KIV-ee-ət; Inuktitut syllabics, ᕿᕕᐅᖅ; Inuinnaqtun, qiviuq; Inupiaq qiviu or qiviuq sometimes spelled qiveut) is the inner wool of the muskox. In Inuktitut the same word can be used to refer to the down feathers of birds.The muskox has a two-layered coat, and qiviut refers specifically to the soft underwool beneath the longer outer wool. The muskox sheds this layer of wool each spring. Qiviut is plucked from the coat of the muskox during the molt or gathered from objects the animals have brushed against; unlike sheep, the animals are not sheared. Much of the commercially available qiviut comes from Canada, and is obtained from the pelts of muskoxen after hunts. In Alaska, qiviut is obtained from farmed animals or gathered from the wild during the molt.


The takin (; Budorcas taxicolor; Tibetan: ར་རྒྱ་, Wylie: ra rgya), also called cattle chamois or gnu goat, is a large species of ungulate of the subfamily Caprinae found in the eastern Himalayas. The four subspecies are the Mishmi takin (B. t. taxicolor), the golden takin (B. t. bedfordi), the Tibetan (or Sichuan) takin (B. t. tibetana), and the Bhutan takin (B. t. whitei).

Whilst the takin has in the past been placed together with the muskox in the tribe Ovibovini, more recent mitochondrial research shows a closer relationship to Ovis (sheep). Its physical similarity to the muskox is therefore an example of convergent evolution. The takin is the national animal of Bhutan.

Taymyr Peninsula

The Taymyr Peninsula (Russian: Полуостров Таймыр, Таймырский полуостров) is a peninsula in the Far North of Russia, in the Siberian Federal District, that forms the northernmost part of the mainland of Eurasia. Administratively it is part of the Krasnoyarsk Krai Federal subject of Russia.


Umingmaktok (Innuinaqtun: Umingmaktuuq, "he or she caught a muskox") is a now abandoned settlement located in Bathurst Inlet in the Kitikmeot Region of the Canadian territory of Nunavut. The community was previously known as Bay Chimo and the Inuit refer to the community as Umingmaktuuq ("like a musk ox").

The traditional language of the area was Inuinnaqtun and is written using the Latin alphabet rather than the syllabics of the Inuktitut writing system. Like Cambridge Bay, Bathurst Inlet and Kugluktuk syllabics are rarely seen and used mainly by the Government of Nunavut.

Situated at the site of a deserted Hudson's Bay Company post, the community was formed as an outpost camp by Inuit families that wanted to live a more traditional lifestyle. The area around Umingmaktuuq is said to be rich in wildlife such as the Arctic fox, fur seals, barren-ground caribou, Arctic char and muskox.

As of the 1996 Census, there were 51 people living in Umingmaktuuq, all but one of whom were Inuit. As of the 2016 census the population was 0 as opposed to 5 people in the 2011 census.With less than two dozen residents, Umingmaktuuq is one of the smallest permanent non-military communities in Nunavut. At one time the community had a school that provided education up to Grade 6. Today, any students are flown to Cambridge Bay and return to the community only for the summer and Christmas.

The community has no electricity other than that provided by portable generators, and communication with the outside world is by satellite phone. The only access to the community is by chartered aircraft, and the landing strip divides Umingmaktuuq in half. On one side is the old Hudson's Bay Company buildings and the Co-op store. On the other side is the main residential area.


Yellowknife (; Dogrib: Sǫ̀mbak'è) is the capital and only city, as well as the largest community, in the Northwest Territories, Canada. It is on the northern shore of Great Slave Lake, about 400 kilometres (250 mi) south of the Arctic Circle, on the west side of Yellowknife Bay near the outlet of the Yellowknife River.

Yellowknife and its surrounding water bodies were named after a local Dene tribe once known as the "Copper Indians" or "Yellowknife Indians", referred to locally as the Yellowknives Dene First Nation, who traded tools made from copper deposits near the Arctic Coast. Its population, which is ethnically mixed, was 19,569 per the 2016 Canadian Census. Of the eleven official languages of the Northwest Territories, five are spoken in significant numbers in Yellowknife: Dene Suline, Dogrib, South and North Slavey, English, and French. In the Dogrib language, the city is known as Sǫ̀mbak'è (Som-ba Kay) ("where the money is").The Yellowknife settlement is considered to have been founded in 1934, after gold was found in the area, although commercial activity in the present-day waterfront area did not begin until 1936. Yellowknife quickly became the centre of economic activity in the NWT, and was named the capital of the Northwest Territories in 1967. As gold production began to wane, Yellowknife shifted from being a mining town to a centre of government services in the 1980s. However, with the discovery of diamonds north of the city in 1991, this shift began to reverse. In recent years, tourism, transportation, and communications have also emerged as significant Yellowknife industries.

Extant Artiodactyla species
Game animals and shooting in North America
Game birds
Big game
Other quarry
See also


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