Pubity on Instagram: "❤️ Sea otter pups sleep on their mom because they are born without the ability to swim or stay afloat on their own, and resting on her chest keeps them warm, dry, and safe from predators. The mother’s thick fur traps air and acts like a natural life raft, preventing the pup from drifting away while also helping regulate its body temperature until it grows strong enough to float and forage independently. (Via ViralHog) #surprise"