Sea otters float on their backs in kelp forests, cracking open shellfish with rocks — one of the few animals that use tools. Their fur is the densest of any animal, with up to a million hairs per square inch, because they have no blubber to keep warm.
📋 Sea Otter at a glance
⚡ Superpower
Sea otters keep a favorite rock in a loose pocket of skin under their arm — their own built-in toolbox.
🤩 Amazing Sea Otter facts
Sea otter fur is the densest on Earth — up to 1 million hairs per square inch.
❓ Common questions about sea otters
How big is a sea otter?
Up to 100 lb (45 kg). Sea otter fur is the densest on Earth — up to 1 million hairs per square inch.
Where do sea otters live?
Sea Otters live in the wild: kelp forests of the north pacific coast. They are wild animals and are never kept as pets.
How long do sea otters live?
Sea Otters typically live 15–20 years.
Can you keep a sea otter as a pet?
No! Sea Otters are wild animals — they belong in the wild (kelp forests of the north pacific coast), and keeping one would be unsafe and usually illegal. If you love animals, check out our care guides for real pets your family can have.
🎬 See sea otters in action
Watch kid-friendly videos about sea otters on YouTube.
▶ Watch Sea Otter videos on YouTube