North American River Otter
The North American River Otter is a semi-aquatic mammal that is highly adapted to hunt prey in water. In addition to their clawed, webbed feet and propeller-like tail, River Otters have the ability to shut their ears and nostrils to prevent water from entering. Where you see beaver lodges or muskrat dens, check for River Otters. They tend to move into their abandoned homes.