The Amazonian Manatee (Trichechus inunguis) is a species of manatee that lives in the freshwater habitats of the Amazon basin. They are also foun in Brazil, Peru, Colombia, Ecuador, Guyana and Venezuela. Amazonian manatees are aquatic animals. They come from the Sirenia order and are also known as "seacows". Their color is gray but sometimes appeares to be a brownish gray. They have thick, wrinkled skin, often with coarse hair, or "whiskers." It lacks significant predation, other than being occasionally hunted by humans. The manatees, and the closely related Dugong, are unique in that they are the only plant-eating marine mammals in modern times.