Via Kansas City Zoo, which writes:
Pawsitively fascinating facts! Getting an up-close view of a sea otter's paws and feet can be hard for the average person, so senior animal care specialist Jocelyn kindly provided a better look for us with these photos. She also shared insight into the importance of otters’ paws/feet:
🐾 Sea otters have extremely dexterous paws, which allow them to find food along the ocean floor and use tools to crack open the hard shells they find.
🐾 Their claws are retractable like house cats' claws.
🐾 They use their forefeet/front paws to groom, forage, and eat but not to swim.
🐾 Often you'll see the sea otters sleeping with their paws and flippers out of the water. This helps them regulate their temperature and stay warm!