Here’s an interesting fact. Otters hold hands (paws) while sleeping so that they don’t float away from each other.
It’s a social thing, according to a zoologist, rather than a sign of personal affection. Otters sleep at sea floating on their backs. So, holding hands like this in the video keeps them together so that they don’t drift apart at night. So, it’s a social and a practical thing for otters.
The video:
