The Sirenia, commonly referred to as sea cows or sirenians, are an order of fully aquatic, herbivorous mammals that inhabit swamps, rivers, estuaries, marine wetlands, and coastal marine waters. The Sirenia currently comprise the families Dugongidae (the dugong) and Trichechidae (manatees) with a total of four species. The Protosirenidae (Eocene sirenians) and Prorastomidae (terrestrial sirenians) families are extinct. Sirenians are classified in the clade Paenungulata, alongside the elephants and the hyraxes, and evolved in the Eocene 50 million years ago. The Dugongidae diverged from the Trichechidae in the late Eocene or early Oligocene.
Sirenians grow to between 2.5 and 4 metres (8.2 and 13.1 feet) in length and 1,500 kilograms (3,300 pounds) in weight. The now extinct Steller's sea cow was the largest sirenian to have lived, and could reach lengths of 8 metres (26 feet) and weights of 8 to 10 metric tons (8.8 to 11.0 short tons). Sirenians have a large, fusiform body to reduce drag through the water. They have heavy bones that act as ballasts to counteract the buoyancy of their blubber. They have a thin layer of blubber and consequently are sensitive to temperature fluctuations, which cause migrations when water temperatures dip too low. Sirenians are slow-moving, typically coasting at 8 kilometres per hour (5.0 miles per hour), but they can reach 24 kilometres per hour (15 miles per hour) in short bursts. They use their strong lips to pull out seagrasses, consuming 10–15% of their body weight per day.
While breathing, they hold just their nostrils above the surface, sometimes standing on their tails to do so. Sirenians typically inhabit warm, shallow, coastal waters, or rivers. They are mainly herbivorous, but have been known to consume animals such as birds and jellyfish. Males typically mate with more than one female (polygyny), and may participate in lek mating. Sirenians are K-selected, and display parental care.
The meat, oil, bones, and skins are valuable items sold in markets. Mortality is often caused by direct hunting by humans or other human-induced causes, such as habitat destruction, entanglement in fishing gear, and watercraft collisions. Steller's sea cow went extinct due to overhunting in 1768.
|West Indian manatees (Trichechus manatus)|
|West Indian in green, Amazonian in red, African in orange, dugong in blue, Steller's sea cow circled (yellow)|
Sirenia, commonly sirenians, are also referred to by the common name sirens, deriving from the sirens of Greek mythology. This comes from a legend about their discovery, involving lonely sailors mistaking them for mermaids. Seekoei (sea cow) is also the name for a hippopotamus in Afrikaans.
Sirenians are classified within the cohort Afrotheria in the clade Paenungulata, alongside Proboscidea (elephants), Hyracoidea (hyraxes), Embrithopoda, Desmostylia, and Afroinsectiphilia. This clade was first established by George Gaylord Simpson in 1945 based on anatomical evidence, such as testicondy and similar fetal development. The Paenungulata, along with the Afrotheria, are one of the most well-supported mammalian clades in molecular phylogeny. Sirenia, Proboscidae, and Desmotylia are grouped together in the clade Tethytheria. Based on morphological similarities, Tethytheria, Perissodactyla, and Hyracoidea were considered to be grouped together as the Altungulata, but this has been invalidated by molecular data.
|Extant Order Sirenia – two genera, four species|
|Genus Trichechus (manatees) Linnaeus, 1758 – three species|
|Common name||Scientific name||Status||Distribution||Picture|
|West Indian manatee||T. manatus Linnaeus, 1758
|African manatee||T. senegalensis Link, 1795
|Amazonian manatee||T. inunguis Natterer, 1883||VU|
|Genus Dugong de Lacépède, 1799 – one species|
|Common name||Scientific name||Status||Distribution||Picture|
|Dugong||D. dugon Müller, 1776
The evolution of sirenians is characterized by the appearance of several traits, which are found in all sirenians (monophyly). The nostrils are large and retracted, the upper-jaw bone contacts the frontal bone, the sagittal crest is missing, the mastoid fills the supratemporal fenestra (an opening on the top of the skull), a drop-like ectotympanic (a bony ring that holds the ear drum), and pachyosteosclerotic (dense and bulky) bones.
Sirenians first appeared in the fossil record in the Early Eocene and significantly diversified throughout the epoch. They inhabited rivers, estuaries, and nearshore marine waters. Sirenians, unlike other marine mammals such as cetaceans, lived in the New World. One of the earliest aquatic sirenians discovered is Prorastomus which dates back to 40 million years ago, and the first known sirenian, the quadruped Pezosiren, lived 50 million years ago. An ancient sirenian fossil of a petrosal bone was found in Tunisia, dating back to approximately the same time as Prorastomus. This is the oldest sirenian fossil to be found in Africa and supports molecular data suggesting that sirenians may have originated in Africa. Prorastomidae and Protosirenidae, the earliest sirenian families, consisted of pig-like amphibious creatures who died out at the end of the Eocene. When the Dugongidae appeared at this time, sirenians had evolved the characteristics of modern variety, including an aquatic streamlined body with flipper-like front legs with no hind limbs, and a powerful tail with horizontal caudal fins which uses an up-and-down motion to move them through the water.
The last of the sirenian families to appear, Trichechidae, apparently arose from early dugongids in the late Eocene or early Oligocene. It is a monophyletic taxon. In 1994, the family was expanded to not only include the subfamily Trichechinae (Potamosiren, Ribodon, and Trichechus), but also Miosireninae (Anomotherium and Miosiren). The African manatee and the West Indian manatee are more closely related to each other than to the Amazonian manatee.
Dugongidae comprises the subfamilies Dugonginae and Hydrodamalinae (which are both monophyletic) and the paraphyletic Halitheriinae. The tusks of modern-day dugongs may have originally been used for digging, but they are now used for social interaction. The genus Dugong probably originated in the Indo-Pacific area.
The paddle-shaped fluke of a manatee (left) vs. that of a dugong (right)
The tail fluke of a dugong is notched and similar to those of dolphins, whereas the tail fluke of manatees is paddle-shaped. The fluke is raised up and down in long strokes to move the animal forward, or twisted to turn. The forelimbs are paddle-like flippers which aid in turning and slowing. Unlike manatees, the dugong lacks nails on its flippers, which are only 15% of a dugong's body length. Manatees generally glide at speeds of 8 kilometres per hour (5.0 mph), but can reach speeds of 24 kilometres per hour (15 mph) in short bursts. The body is fusiform to reduce drag in the water. Like cetaceans, the hind limbs are internal and vestigial. The snout is angled downwards to aid in bottom-feeding. Sirenians typically make two to three minute dives, but manatees can hold their breath for up to 15 minutes while resting and dugongs up to six minutes. They may stand on their tail to hold their head above water.
A dugong skull (left) vs. a manatee skull (right)
Much like elephants, manatees are polyphyodonts, and continuously replace their teeth from the back of the jaw. Adults lack incisors, canines, and premolars, and instead have 8 to 10 cheek teeth in their mouth. Manatees have an infinite supply of teeth moving in from the back and shedding in the front, which are continuously formed by a dental capsule behind the tooth-row. These teeth are constantly worn down by the abrasive vascular plants they forage, particularly aquatic grasses. Unlike in manatees, the dugong's teeth do not continually grow back via horizontal tooth replacement. The dugong has two tusks which emerge in males during puberty, and sometime later in life for females after reaching the base of the premaxilla. The number of growth layer groups in a tusk indicates the age of a dugong.
Sirenians exhibit pachyostosis, a condition in which the ribs and other long bones are solid and contain little or no bone marrow. They have among the densest bones in the animal kingdom, which may be used as ballast, counteracting the buoyancy effect of their blubber and help keep sirenians suspended slightly below the water's surface. Manatees do not possess blubber, per se, but rather have thick skin, and, consequently, are sensitive to temperature changes. Likewise, they often migrate to warmer waters whenever the water temperature dips below 20 °C (68 °F). The lungs of sirenians are unlobed, they, along with the diaphragm, extend the entire length of the vertebral column, which help them control their buoyancy and reduce tipping in the water.
Extant sirenians grow to between 2.5 and 4 metres (8.2 and 13.1 ft) in length and can weigh up to 1,500 kilograms (3,300 lb). Steller's sea cow was the largest sirenian to have lived, and could reach lengths of 9 metres (30 ft), and could weigh in at 8 to 10 metric tons (8.8 to 11.0 short tons). A dugong's brain weighs a maximum of 300 grams (11 ounces), about 0.1% of the animal's body weight. The body of sirenians is sparsely covered in short hair (vibrissae), except for on the muzzle, which may allow for tactile interpretation of their environment. Manatees are the only creatures to exhibit corneal avascularity, and lack blood vessels in the cornea, which prevents optical clarity and vision. This may be the result of irritations from or protection against their hypotonic freshwater environment.
Sirenians are referred to as "sea cows" because their diet consists mainly of seagrass. Dugongs sift through the seafloor in search of seagrasses. Dugongs use their sense of smell to find the seagrass because their eyesight is poor making it difficult to use their sense of sight to find food. They ingest the whole plant, including the roots, although they will feed on just the leaves if this is not possible. Manatees, in particular the West Indian manatee, are known to consume over 60 different freshwater and saltwater plants, such as shoalweed, water lettuce, muskgrass, manatee grass, and turtle grass. Using their divided upper lip, an adult manatee will commonly eat up to 10%-15% of their body weight, or 50 kilograms (110 lb), per day, which requires the manatee to graze for several hours per day. However, 10% of the diet of the African manatee is fish and mollusks. Manatees have been known to eat small amounts of fish from nets. As opposed to bulk feeding, dugongs target high-nitrogen grasses to maximize nutrient intake, and, although almost completely herbivorous, dugongs will occasionally eat invertebrates such as jellyfish, sea squirts, and shellfish. Some populations of dugongs, such as the one in Moreton Bay, Australia, are omnivorous, feeding on invertebrates such as polychaetes or marine algae when their supply of seagrasses decrease. In other dugong populations in western and eastern Australia, there is evidence that dugongs actively seek out large invertebrates. Populations of Amazonian manatees become restricted to lakes during the July–August dry season when water levels begin to fall, and are thought to fast during this period. Their large fat reserves and low metabolic rates – only 36% of the usual placental mammal metabolic rate – allow them to survive for up to seven months with little or no food.
Despite being mostly solitary, sirenians congregate in groups while females are in estrus. These groups usually include one female with multiple males. Sirenians are K-selectors, so, despite the longevity, females give birth only a few times during their life and invest considerable parental care in their young. Dugongs generally gather in groups of less than a dozen individuals for one to two days. Since they congregate in turbid waters, little is known about their reproductive behavior. The males are often seen with scars, and the tusks on dugongs grow in first for males, suggesting they are important in lekking. They have also been known to lunge at each other. The age when a female first gives birth is disputed, ranging anywhere from six to seventeen years. The time between births is unclear, with estimates ranging from 2 to 7 years. Though, in Sarasota, Florida 113 manatee were observed of known gender. Of these 113, there were 53 females that produced at least 55 calves during a 5-year period of observation.
Manatees can reach sexual maturity as early as two to five years of age. Manatee gestation length is around one year, and then they lactate for one to two years. West Indian manatees and African manatees can breed year-round, and a female will mate with multiple male partners. Amazonian manatees have a breeding season, usually mating when the river levels begin to rise, which varies from place to place.
The three extant manatee species (family Trichechidae) and the Dugong (family Dugongidae) are rated as vulnerable on the IUCN Red List of Endangered Species. All four are vulnerable to extinction from habitat loss and other negative impacts related to human population growth and coastal development. Steller's sea cow, extinct since 1786, was hunted to extinction by humans.
The meat, oil, bones, and skin of manatees are valuable items. In some countries, such as Nigeria and Cameroon, African manatees are sold to zoos, aquariums, and online as pets, sometimes being shipped internationally. Though illegal, lack of law enforcement in these areas induce poaching. Some residents of West African countries, such as Mali and Chad, depend on the oil of the African manatee to cure ailments such as ear infections, rheumatism, and skin conditions. Hunting is the largest source of mortality in Amazonian manatees, and there are no management plans except for in Colombia. Amazonian manatees, especially calves, are sometimes illegally sold as pets, but there are several institutions that care for and rescue these orphans, with the possibility of their releasing into the wild. The body parts of Dugongs are used as medicinal remedies across the Indian Ocean.
Manatees have also faced threats in Cuba, an area that is not always known for its manatee population. Manatees in Cuba have faced poaching, entanglement and pollution. The area has some of the most extensive and best manatee habitat in the Caribbean, but the population has been unable to thrive there for numerous reasons. Existing information about manatees in Cuba is limited and scarce, this makes it difficult to spread awareness which therefore enhances the situation of illegal poaching and entanglement within fishing nets in a majority of the coastal communities. Poaching of the manatees has been a significant issue since the 1970s when it was initially reported that the hunting was taking its toll on the manatee population in Cuba. In 1975 it was recorded that the manatees’ status in Cuba was rare and declining at an alarming rate due to pollution and hunting. In 1996 manatees were placed under protection through the Fishery Decree law 164. This law provided penalties against those that manipulated, harm, or injured manatees. However, it was seen that the hunting of manatees in Cuba in the 1990s may have been the result of economic hardships in this country and the manatees were an alternative source of protein. Although there have been efforts made to protect the population of manatees in Cuba, it has not proven to be helpful or as impactful as those working to protect the population had hoped. Many of these areas are seen as “paper parks” or parks or protected areas that only exist due to their name and nothing else, and they do not have a significant impact on conversation and protections.
Environmental hazards induced by humans also puts sirenians at risk. Sirenians, especially the West Indian manatee, face high mortality from watercraft collision, and about half of all West Indian manatee deaths are caused by watercraft collisions. An increased usage of hydroelectric power and subsequent damming of rivers increase waterway traffic, which can lead to vessel collisions, and manatees may become entangled in navigational locks. The urbanized coastline of areas such as the Caribbean and Australia can result in the decline of seagrass populations. Reliable areas of warm water in Florida are generally the result of discharge from power plants, but newer plants with more efficient cooling systems may disrupt the pattern of warm water refuges, and an increased demand for artesian springs for water, the natural source of warm water, decreases the number of warm water refuges. Sirenians can be caught as bycatch from fisheries, and they can be seen as pests with the interference of local fishermen and the destruction of their nets. African manatees have also been known to venture into rice paddies and destroy the crops during the rainy season, and these confrontations with locals may lead to intentional culling of the manatees. Red tide, scientifically known as Karenia brevis is a harmful algae bloom that releases toxins into the water killing many marine species. In 1982, numerous sick manatees were accounted for and researchers believe this was due to the accumulation brevetoxins in filter-feeding organisms attached to seagrass blades, which are a popular diet for manatees. Manatee die-offs from exposure to red tide toxins were recorded by the Florida Fish and Wildlife Conservation Commission in southwest Florida in 2002, 2003, 2005, 2007, and most recently in 2013. As of June 20, 2018 the current red tide bloom spreads from Pasco county to Collier County off the West coast of Florida. As of January 2018 there have been a total of 472 manatee deaths caused by this red tide along with water crafts, cold stress, and other factors.
Weather disasters and other natural occurrences are also sources of mortality. The West Indian manatee and Dugong face risks from hurricanes and cyclones, which are predicted to increase in the future. These storms may also damage seagrass populations. Exposure to brevetoxin from Karenia brevis during a red tide event are also sources of mortality; they may be able to be exposed to brevetoxin after a red tide has subsided, as it could settle on seagrasses. African manatees can become stranded during the dry season when rivers and lakes become too small or dry up completely.
All sirenians are protected by the Marine Mammal Protection Act of 1972 (MMPA), the Endangered Species Act of 1973 (ESA), and the Convention on the International Trade in Endangered Species of Wild Fauna and Flora (CITES). In addition to this, the four species are further protected by various specialty organizations. The Dugong is listed in the Convention on Biological Diversity (CBD), the Convention on Migratory Species, and the Coral Triangle Initiative. In Florida, manatees are protected by the Florida Manatee Sanctuary Act of 1978, which implements actions such as the limitation or prohibition of watercraft speeds where manatees exist. Marine mammal rehabilitation programs have been underway and regulated in the United States for more than 40 years. In 1973 Injured and distressed manatees were rescued or aided within Florida. Eventually, the program was formalized into the Manatee Rescue, Rehabilitation, and Release Program managed by the USFWS. In 2012 the program became the Manatee Rescue/ Rehabilitation Partnership (MRP) with permitting and oversight by the USFWS. From 1973 through 2014, this program rescued 1,619 manatees and 526 Florida manatees have been released.
Pilar María Del Carmen Mónica Giménez García (Barcelona, Spain, May 29, 1982) known professionally as Ailyn Giménez or simply Ailyn, is a Spanish singer, songwriter, best known as the former female vocalist of the Norwegian symphonic/gothic metal band Sirenia. She was the fourth singer and has sung on more full Sirenia albums than any other singer to date.
Before joining Sirenia, she was one of the contestants on Series 1 (2007) for Spain's version of The X Factor, and was eliminated in the fourth episode.Arcane Astral Aeons
Arcane Astral Aeons is the ninth full-length album by Norwegian gothic metal band Sirenia. It was released on 26 October 2018 through Napalm Records.It is their second album with French vocalist Emmanuelle Zoldan.
A lyric video was made for the single "Love Like Cyanide" released on 21 September 2018. The song features a guest appearance by Yannis Papadopoulos from Finnish band Beast In Black. On October 12, "Into the Night" was released as the second single along followed by a music video on October 19. Both videos were directed by Swedish filmmaker and musician Owe Lingvall.At Sixes and Sevens
At Sixes and Sevens is the debut studio album by the Norwegian gothic metal band Sirenia, and their only album featuring the vocals of French singer Fabienne Gondamin. The woman on the cover is a Norwegian model, picked by the designer to represent a Siren.Caitlín R. Kiernan bibliography
Caitlín R. Kiernan is the author of many science fiction and dark fantasy works, including eleven novels, many comic books, more than two hundred and fifty published short stories, novellas, and vignettes. She has also written numerous scientific papers.Dim Days of Dolor
Dim Days of Dolor is the eighth full-length album by Norwegian gothic metal band Sirenia. It was released on November 11, 2016 through Napalm Records. It is their first album with French vocalist Emmanuelle Zoldan following the departure of Ailyn.
On October 6, 2016, it was released a lyric video for "The 12th Hour". A music video was made for the song "Dim Days of Dolor" directed by Owe Lingvall and released on November 11, 2016.Dugongidae
The Dugongidae are a family in the order of Sirenia. The family has one surviving species, the dugong (Dugong dugon), one recently extinct species, Steller's sea cow (Hydrodamalis gigas), and a number of extinct genera known from fossil records.Evolution of sirenians
Sirenia is the order of placental mammals which comprises modern "sea cows" (manatees and the Dugong) and their extinct relatives. They are the only extant herbivorous marine mammals and the only group of herbivorous mammals to have become completely aquatic. Sirenians are thought to have a 50-million-year-old fossil record (early Eocene-recent). They attained modest diversity during the Oligocene and Miocene, but have since declined as a result of climatic cooling, oceanographic changes, and human interference. Two genera and four species are extant: Trichechus, which includes the three species of manatee that live along the Atlantic coasts and in rivers and coastlines of the Americas and western Africa, and Dugong, which is found in the Indian and Pacific oceans.Halitherium
Halitherium is an extinct dugongid sea cow that arose in the late Eocene, then became extinct during the early Oligocene. Its fossils are common in European shales. Inside its flippers were finger bones that did not stick out. Halitherium also had the residues of back legs, which did not show externally. However, it did have a basic femur, joined to a reduced pelvis. Halitherium also had elongated ribs, presumably to increase lung capacity to provide fine control of buoyancy. A 2014 review presented the opinion that the genus is dubious.Hyrax
Hyraxes (from the Greek ὕραξ, hýrax, "shrewmouse"), also called dassies, are small, thickset, herbivorous mammals in the order Hyracoidea. Hyraxes are well-furred, rotund animals with short tails. Typically, they measure between 30 and 70 cm (12 and 28 in) long and weigh between 2 and 5 kg (4.4 and 11 lb). They are also superficially similar to pikas or rodents (especially marmots), but are more closely related to elephants and manatees.
Five extant species are recognised; the rock hyrax (Procavia capensis) and the yellow-spotted rock hyrax (Heterohyrax brucei), which both live in isolated rock outcrops, called kopjes, the western tree hyrax (Dendrohyrax dorsalis), southern tree hyrax (D. arboreus), and eastern tree hyrax (D. validus). Their distribution is limited to Africa, except for Procavia capensis which is also found in the Middle East.List of placental mammals
List of placental mammals contains the placental mammals. The class Mammalia (mammals) is divided into two subclasses based on reproductive techniques: monotremes, which lay eggs, and therians, mammals which give live birth, which has two infraclasses: marsupials, pouched mammals and placental mammals. See List of monotremes and marsupials, and for the clades and families, see Mammal classification. Classification updated from Wilson and Reeder's Mammal Species of the World: A Taxonomic and Geographic Reference using the Planet' Mammifères website.Manatee
Manatees (family Trichechidae, genus Trichechus) are large, fully aquatic, mostly herbivorous marine mammals sometimes known as sea cows. There are three accepted living species of Trichechidae, representing three of the four living species in the order Sirenia: the Amazonian manatee (Trichechus inunguis), the West Indian manatee (Trichechus manatus), and the West African manatee (Trichechus senegalensis). They measure up to 4.0 metres (13.1 ft) long, weigh as much as 590 kilograms (1,300 lb), and have paddle-like flippers. The etymology of the name is dubious, with connections having been made to Latin "manus" (hand), and to a word sometimes cited as "manati" used by the Taíno, a pre-Columbian people of the Caribbean, meaning "breast". Manatees are occasionally called sea cows, as they are slow plant-eaters, peaceful and similar to cows on land. They often graze on water plants in tropical seas.Morten Veland
Morten Veland (born 4 December 1977) is a Norwegian multi-instrumentalist, composer, songwriter, and producer. He is one of the founding members of the Norwegian gothic metal band Tristania, and the founding member of Sirenia and Mortemia.
Up to date, he has released nine albums and two EP's.Nine Destinies and a Downfall
Nine Destinies and a Downfall is the third full-length studio album by the Norwegian gothic metal band Sirenia. It was released on 23 February 2007 through Nuclear Blast. The enhanced CD of the digipak edition contains a bonus track, the video for the song "My Mind's Eye" and multimedia software.Perils of the Deep Blue
Perils of the Deep Blue is the sixth full-length album by the Norwegian gothic metal band Sirenia. It was released on June 28, 2013 in Europe, July 1 in the United Kingdom and July 9 in North America through Nuclear Blast.Produced by Morten Veland, it was mastered and mixed by Endre Kirkesola at Dub Studios in Norway. The cover art is by artist Anne Stokes, and was discovered by Veland by chance via the Internet.Sirenia (band)
Sirenia is a Norwegian gothic metal band from Stavanger, Norway.
The band uses melodic instrumentals, synthesizers, and distorted guitars with female vocals, male death vocals, clean male vocals, a choir, and violins. The lyrics are concerned with human existence, emotion, and mental states.Sirenia Stakes
The Sirenia Stakes is a Group 3 flat horse race in Great Britain open to two-year-old horses. It is run at Kempton Park over a distance of 6 furlongs (1,207 metres, and it is scheduled to take place each year in early September.Tethytheria
Tethytheria is a clade of mammals that includes the sirenians and proboscideans, as well as the extinct order Embrithopoda.Though there is strong anatomical and molecular support for the monophyly of Tethytheria, the interrelationships between the included taxa remain disputed. The tethytheres are united by several characters, including anteriorly facing orbits and more or less bilophodont cheek teeth (double transverse ridges on the crowns of the teeth). Proboscidea and Sirenia are linked together based on auditory characters in their petrosal bones, but this link may be a homoplasy. Desmostylians, traditionally considered tethytheres, have been tentatively assigned to Perissodactyla, along with the Early Eocene family Anthracobunidae, which was considered a sister group to Tethytheria.Tethytheria is thought to have evolved from primitive hoofed mammals ("condylarths") along the shores of the ancient Tethys Ocean.The 13th Floor (album)
The 13th Floor is the fourth full-length studio album by the Norwegian gothic metal band Sirenia and their first with the Spanish vocalist Ailyn. It was released on 23 January 2009, through Nuclear Blast. The album features guest appearances by Jan Kenneth Barkved (who had also made some guest appearances on their album At Sixes and Sevens), and the French violin player, Stephanie Valentin, who adds to the sound along with the choir that has been a part of their sound since the beginning. The album was released in three formats: CD, CD-Digi and box set. The box set edition was restricted to 500 copies worldwide. The download-only single, "The Path to Decay", was released on 26 December 2008.The Enigma of Life
The Enigma of Life is the fifth full-length studio album by the Norwegian gothic metal band Sirenia and their second with the Spanish vocalist Ailyn. It was released on 21 January 2011 through Nuclear Blast. The album was mastered at Finnvox Studios in Finland. The download-only single, "The End of It All", was released on 21 December 2010.
Sirenia Families († = Extinct)
Extant mammal orders
Extant Sirenia species by family