The best places to look for tracks are muddy river banks. They have five toes on the front feet and five toes on the hind feet. Their toes are partially webbed, which helps them swim. Tracks in mud sometimes show this webbing. The claw marks are so close to the toes, they give the toes a characteristic pointed appearance.
Otters are well-known for their intelligence and their playful antics.
They are excellent fishers, but also will eat small mammals, fish, shellfish, snakes, turtles, birds, eggs, amphibians, and lampreys. They feed primarily on amphibians and will range up to five miles up and down-river each day while hunting. The tail drag is sometimes visible in an otter trail. Often, their prints are found in groups of four. Otter scat commonly contains fish scales and is often found on prominent landmarks near water, including rocks, stumps, and boat docks.