What are sea otters?
Q: What are sea otters?
A: Sea otters are marine mammals.
Q: Where do sea otters live?
A: Sea otters live along the Pacific coast of North America, including Kamchatka, and as far south as Japan.
Q: Why were sea otters hunted by humans?
A: Sea otters were hunted by humans almost to extinction for their rich fur.
Q: When did sea otters receive protection?
A: Sea otters received protection in 1911 when the Fur Seal Treaty was signed.
Q: What do sea otters eat?
A: Sea otters eat shellfish and other invertebrates, especially clams, abalone, and sea urchins.
Q: What do sea otters use to smash open shells?
A: Sea otters use their favorite rock, which they carry in their paws or in a pouch under their forearm, to smash open shells.
Q: How big do sea otters grow?
A: Sea otters grow to be 1.0 to 1.5 m (3.3 to 4.9 ft) in length and weigh 30 kg (66 lb).