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A skeleton of a manatee and calf, the Museum of Osteology, Oklahoma City Skull of a West Indian manatee, the Museum of Osteology, Oklahoma City 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 ...
When aerial surveys began in 1991, there were only an estimated 1,267 manatees in Florida, meaning that the last 25 years has seen a 400 percent increase in the species population in that state. [ 13 ] [ 14 ]
[119] [120] A 2016 study on the Antillean manatee population of Brazil found a potential range for current population size between 485 and 2,221 individuals. [121] The U.S. Fish and Wildlife Service estimated in 2017 that as many as 6,782 individuals might exist in the Antillean subspecies, but these results rely in large part on personal ...
In 2021 and 2022, Florida’s manatee population took a hit as thousands of manatees died of starvation. ... Seventy-two manatee deaths so far in 2023 were linked to watercraft.
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. [71] In 1975, it was reported that the manatees' population in Cuba was rare and declining at an alarming rate due to pollution and hunting.
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.
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).
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.