River Otter : Great Lakes Aquarium

River Otter

Exhibits: Otter Cove

Animal Groups: Mammals

Latin Name: Lontra canadensis

Fish, frogs, rodents, and crayfish


North American River Otters are found throughout North America. They are found predominately in freshwater ponds, rivers, streams and lakes. Otters living in coastal regions have also been spotted in tide pools.

Animal Size: Adults: 12-20 lbs
Conservation Status: Regionally dependent.

Natural History

River otters are most active in the early morning and evening. They live in both urban and rural areas. Otters are weasels and use a strong scent to mark territory.