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The African manatee and the West Indian manatee are more closely related to each other than to the Amazonian manatee. [9] Dugongidae comprises the subfamilies Dugonginae and Hydrodamalinae 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 West Indian manatee (Trichechus manatus), also known as the North American manatee, is a large, aquatic mammal native to warm coastal areas of the Caribbean, from the Eastern United States to northern Brazil. Living alone or in herds, it feeds on underwater plants and uses its whiskers to navigate.
Accurate population estimates of the West Indian manatee in Florida are difficult. They have been called scientifically weak [42] because they vary widely from year to year, with most areas showing decreases, and little strong evidence of increases except in two areas. Manatee counts are highly variable without an accurate way to estimate numbers.
Amazonian manatee Dugong West Indian manatee. Sirenians, along with Proboscidea (elephants), group together with the extinct Desmostylia and likely the extinct Embrithopoda to form the Tethytheria. Tethytheria is thought to have evolved from primitive hoofed mammals ("condylarths") along the shores of the ancient Tethys Ocean.
Trichechus inunguis - Amazonian Manatee; Trichechus manatus - West Indian Manatee; Trichechus senegalensis - African Manatee †Trichechus hesperamazonicus †Potamosiren †Potamosiren magdalensis †Ribodon †Ribodon limbatus
Articles related to the Manatees (genus Trichechus), 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 ...
The dugong (/ ˈ d (j) uː ɡ ɒ ŋ /; Dugong dugon) is a marine mammal.It is one of four living species of the order Sirenia, which also includes three species of manatees.It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century.
West Indian manatees. Sirenia is an order of fully aquatic, herbivorous mammals that inhabit rivers, estuaries, coastal marine waters, swamps, and marine wetlands. All four species are endangered. Family: Trichechidae. Genus: Trichechus. West Indian manatee, T. manatus VU extirpated