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Description. Manatees weigh 400 to 550 kg (880 to 1,210 lb), and average 2.8 to 3.0 m (9 ft 2 in to 9 ft 10 in) in length, sometimes growing to 4.6 m (15 ft 1 in) and 1,775 kg (3,913 lb) and females tend to be larger and heavier than males. At birth, baby manatees weigh about 30 kg (66 lb) each.
There are currently more than 1300 species on this list. [11] On March 11, 1967, federal efforts to protect the manatee began when the United States Fish and Wildlife Service listed the manatee as endangered on the ICUN Red List. [10] In 1972, the manatee was designated a marine mammal protected under the Federal Marine Mammal Protection Act.
List of cetaceans. Cetacea is an infraorder that comprises the 94 species of whales, dolphins, and porpoises. It is divided into toothed whales (Odontoceti) and baleen whales (Mysticeti), which diverged from each other in the Eocene some 50 million years ago (mya). Cetaceans are descended from land-dwelling hoofed mammals, and the now extinct ...
The three extant manatee species (family Trichechidae) and the dugong (family Dugongidae) are rated as Vulnerable on the IUCN Red List of Threatened Species. All four are vulnerable to extinction from habitat loss and other negative impacts related to human population growth and coastal development.
The West Indian manatee has been included on the U.S. Endangered Species List since the 1970s. In October 2007, the International Union for Conservation of Nature (IUCN) assessed the West Indian manatee as vulnerable, and both the Florida and Antillean subspecies as endangered. [ 4 ]
Amazonian manatee. The Amazonian manatee (Trichechus inunguis) is a species of manatee that lives in the Amazon Basin in Brazil, Peru, Colombia and Ecuador. [2] It has thin, wrinkled brownish or gray colored skin, with fine hairs scattered over its body and a white chest patch. [4][5] It is the smallest of the three extant species of manatee.
Species: S. filiforme. Binomial name. Syringodium filiforme. Kütz. Syringodium filiforme, commonly known as manatee grass, is a species of marine seagrass. It forms meadows in shallow sandy or muddy locations in the Caribbean Sea and the Gulf of Mexico, and is also found in the Bahamas and Bermuda. [1][2] It occurs to a depth of about 20 m (66 ...
Binomial name. Trichechus senegalensis. Link, 1795. African manatee range. The African manatee (Trichechus senegalensis), also known as the West African manatee, is a species of manatee that inhabits much of Western Africa – from Senegal to Angola. [3] It is the only manatee species to be found in the Old World.