Some species of crabs can regenerate lost claws.

Certain frogs can inflate themselves to appear larger to predators.

Fact #377 · Animals

A woodpecker's skull absorbs shock from repeated pecking.

Fact #393 · Animals

Penguins can drink salt water because of specialized glands.

Fact #362 · Animals

A red kangaroo is the largest marsupial.

Fact #480 · Animals

Some birds migrate thousands of miles each year.

Fact #77 · Animals

Some birds can fly at high altitudes over mountains.

Fact #323 · Animals

Some birds cache food for later consumption.

Fact #461 · Animals

Some birds can mimic human speech.

Fact #268 · Animals