If you’ve ever walked the beach and pocketed a neat-looking rock, know that you share something in common with otters. The ...

Fortunately for nursing mothers of both species, the babies are not typically born with teeth. Baby otters’ permanent teeth begin to come in around three weeks old, with canines erupting at ...

The latest research has compared the teeth of these ancient human relatives with those of modern sea otters - known for their ability to crack through the hard shells of mussels and other shellfish.

The river otter has few natural predators because of its strength, sharp teeth, aggressiveness when attacked, and aquatic habits. Snapping turtles, coyotes, bobcats, and foxes may occasionally prey ...

Otters do this for several reasons ... Experts believe this is due to their smaller size and weaker teeth. It also helps conserve energy, which females require more of to give birth and raise ...