If you’ve ever seen a picture or video of sea otters floating on their backs, holding hands as they snooze, you’ve probably ...

Sea otters have powerful teeth and even more powerful bites – an estimated 615 pounds of force. That’s about as much as a ...

But it’s not just staying afloat that’s key to a life at sea – groups of otters hold hands and tangle themselves in kelp forests to make sure they don’t drift apart.