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The North American river otter (Lontra canadensis), also known as the northern river otter and river otter, is a semiaquatic mammal that lives only on the North American continent throughout most of Canada, along the coasts of the United States and its inland waterways. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 ...
The North American River Otter River Otters are a native North American species who live throughout Canada, in the Pacific Northwest, all along eastern seaboard and Atlantic Coast, and throughout ...
Otters are active hunters, chasing prey in the water or searching the beds of rivers, lakes or the seas. Most species live beside water, but river otters usually enter it only to hunt or travel, otherwise spending much of their time on land to prevent their fur becoming waterlogged.
Male otters generally weigh between 15 to 20 pounds, with females being slightly smaller and can generally live for about 12-15 years in the wild. North American river otters cavort in an ...
An extinct genus, Satherium, is believed to be ancestral to South American river otters, having migrated to the New World during the Pliocene or early Pleistocene. [11] The South American continent houses the otter genus Lontra: the giant otter, the neotropical river otter, the southern river otter, and the marine otter. [12]
The lifespan of wild mink is approximately two years; whereas, wild river otters may live longer than 10 years. River otters do not attain maturity until they are two to four years old.
The sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean.Adult sea otters typically weigh between 14 and 45 kg (30 and 100 lb), making them the heaviest members of the weasel family, but among [3] the smallest marine mammals.
A medium-sized otter, the southern river otter's body can grow up to 70 cm (28 in) long, with the tail adding about 40 cm (16 in). Body weight averages about 5–10 kg (11–22 lb). Its fur is dark brown on the upper parts and a lighter cinnamon color or can be almost white on the underside.