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- Sirenians have a strong preference for warm waters. However, there is a difference between dugong and manatee habitats. Dugongs are exclusively marine, while manatees inhabit both marine and freshwater systems. They live in swamps, rivers, estuaries, marine wetlands, and coastal marine water. Sirenians have no dorsal fin.
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Manatees and dugongs differ in a number of traits besides the shape of the tail. Manatees lack incisor teeth, but incisors do occur in dugongs, erupting as tusks in the males. Manatees grow a never-ending series of molars that continuously move forward in the jaw to replace those that wear and fall out at the front.
Jan 4, 2021 · Sirenians have a strong preference for warm waters. However, there is a difference between dugong and manatee habitats. Dugongs are exclusively marine, while manatees inhabit both marine and freshwater systems. They live in swamps, rivers, estuaries, marine wetlands, and coastal marine water. Sirenians have no dorsal fin.
Sirenians have two flippers; manatees have three to four nails on the second, third and fourth digits, while dugongs lack nails. All sirenians lack hind limbs, and have gray-brown skin that is smooth in some species, such as Amazonian manatees , or wrinkled in others, such as West Indian manatees .
May 27, 2019 · Though manatees and dugongs have a lot in common, they are different animals with distinct characteristics. Both dugongs and manatees are part of the same taxonomic order, Sirena. The word “siren” means mermaid in many languages, a nod to the animals’ history of being mistaken for mermaids.
The extant Sirenia comprise two distinct families: Dugongidae (the dugong and the now extinct Steller's sea cow) and Trichechidae (manatees, namely the Amazonian manatee, West Indian manatee, and West African manatee) with a total of four species. [2]
Dugongs and manatees are fully aquatic, herbivorous mammals that inhabit swamps, rivers, estuaries, marine wetlands, and coastal marine waters. They are commonly referred to as sea-cows or sirenians. Sirenians have a large, fusiform body that helps to reduce drag through the water.
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May 23, 2018 · Dugongs (Dugong dugong) are closely related to manatees and are the fourth species under the order sirenia. Unlike manatees, dugongs have a fluked tail, similar to a whale’s, and a large snout with an upper lip that protrudes over their mouth and bristles instead of whiskers.
