Sea Otter

Sea otter holding cub while floating on the ocean surface
Sea Otter. ©Tim Hauf,

Quick Facts

Diet: Carnivore: Sea urchins, abalone, mussels, clams, crabs

Average lifespan: Males: 10–15 years; Females: 15–20 years

Average size: Males: 4–5 ft.; Females: 3–5 ft.

Average weight: Males: 49–99 lb.; Females: 31–73 lb.

Did You Know?
The sea otter has the densest fur of any mammal, with almost one million hairs per square inch. In comparison, we only have 100,000 hairs on our entire head!

Last updated: November 9, 2018