Sea Otter
A marine mammal that uses tools to crack open shellfish on its chest
Fun Fact
Sea otters have the densest fur of any mammal with up to one million hairs per square inch, providing insulation without blubber.
More in Animals
$31.4M
Hippopotamus
A large semiaquatic mammal that is one of Africa's most dangerous animals
$4.0M
Chimpanzee
Our closest living relative, known for tool use and complex social behavior
$1.0M
Giant Panda
An iconic bear native to central China that feeds almost entirely on bamboo
$400,000
Polar Bear
The largest land carnivore, perfectly adapted to Arctic life