Sea otter

The sea otter is a furry marine mammal that lives along the northern Pacific coasts. It has the thickest fur of any animal, which keeps it warm in chilly ocean waters. These otters spend nearly their whole lives at sea, though they can come ashore if needed.

• Weighs between 30 to 100 pounds as an adult
• The heaviest member of the weasel family
• Can survive entirely in the ocean without coming to land