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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 ...
Mink mate from mid-winter to early spring and river otters probably mate during the fall. Both species undergo delayed implantation and females may not give birth for approximately nine to 11 months.
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 ...
The river otter's habitat is in water and on land. They create a burrow near the water as their den and easily adapt to other aquatic habitats. [4] They hunt during the night, and find food that is readily available to them. River otters have great swimming abilities and stay active during winter.
River Otter Pups. North American river otters usually give birth to one litter of pups a year, consisting of about three to four pups per litter. ... Winter storm spanning nearly 2,000 miles to ...
However, during the winter and in colder environments, fish consumption is significantly lower and the otters use other resources for their food supply. Their diets can consist of amphibians (mainly frogs and pond turtles), bird predation (mainly anserine species), small rodents, and invertebrates such as water beetles, snails, and crayfish ...
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.
In 2019, Friends of the Kaw confirmed the presence of river otters, a species that disappeared for decades from much of its range, including Kansas, because of hunting and other human activity.