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Manatees (/ ˈ m æ n ə t iː z /, 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 ...
Manatees have nostrils, not blowholes like other aquatic mammals, which close when underwater to keep water out and open when above water to breathe. [14] Although manatees can remain under water for extended periods, surfacing for air about every five minutes is common. [15] [16] The longest documented submergence of an Amazonian manatee in ...
Manatees can also inhale these brevotoxins from the surface of the water as they come up for air, leading to respiratory symptoms and even drowning. [75] 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 2013.
Crystal River, Florida, is home to just over 3,000 residents, but it's the town's aquatic population—manatees in particular—that make the tiny town truly special.
[11] [25] Consequently, Florida manatees seek out warm-water refuges during the winter, concentrated primarily along the Florida peninsula. [26] Many of these refuges are artificial, created by the runoff from nearby power plants. [4] In contrast, the Antillean manatee is less susceptible to cold-induced stress due to the warmer waters across ...
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The physiology of underwater diving is the physiological adaptations to diving of air-breathing vertebrates that have returned to the ocean from terrestrial lineages. They are a diverse group that include sea snakes, sea turtles, the marine iguana, saltwater crocodiles, penguins, pinnipeds, cetaceans, sea otters, manatees and dugongs.