Also known as skunk dolphins or Commerson's dolphins, these mammals weigh up to 190 pounds and often approach boats.

One of the most attractive critters at the zoo splashes through frigid waters: polar bears, the beauties of the Arctic Circle ...

A sea lion hopped onto a woman's kayak in La Jolla Cove and made himself comfortable next to her, but she resisted his advances and followed the recommended guidelines of staying at least 50 feet away ...

This cat was born looking permanently unimpressed. Thanks to some wild fur markings, this cat appears to have thick eyebrows ...