The fossilized remains of a whale that washed up on a shore in what's now Chile more than 5 million years ago. Vince Rossi/Smithsonian Institution hide caption

itoggle caption Vince Rossi/Smithsonian Institution

A fish that knows the way to go: the Chinook salmon, which appears to use the Earth's magnetic field to navigate ocean waters and rivers. Jeff T. Green/Getty Images hide caption

itoggle caption Jeff T. Green/Getty Images

Caught red-beaked: This eagle grabbed a small wildlife camera in western Australia, flew away with it and then pecked away at the lens. ABC Kimberley hide caption

itoggle caption ABC Kimberley