River Otter (Lontra canadensis)
North American river otters (Lontra canadensis) can be found anywhere there is a permanent food supply and easy access to water, and are common in both fresh and coastal waterways across Massachusetts. Thanks to their well adapted body design, including webbed feet, a streamlined body, a thick muscular tail, and a dense coat of fur, otters are accomplished swimmers and underwater hunters. Small fish make up the bulk of a river otter’s diet throughout the year, but they will also…