The North American river otter , also known as the northern river otter or the common otter, is a semiaquatic mammal endemic to the North American continent found in and along its waterways and coasts. An adult river otter can weigh between 5.0 and 14 kg . The river otter is protected and insulated by a thick, water-repellent coat of fur.
The river otter, a member of the subfamily Lutrinae in the weasel family , is equally versatile in the water and on land. It establishes a burrow.. more