Polar bears are not actually white — their fur is transparent and hollow, scattering light to appear white.

Some plants can survive in salty soil.

Fact #298 · Animals

Some marine mammals communicate through clicks and whistles.

Fact #525 · Animals

A great horned owl has powerful talons for hunting.

Fact #449 · Animals

Some birds can mimic human speech.

Fact #268 · Animals

Some birds migrate thousands of miles each year.

Fact #77 · Animals

Certain frogs use bright colors to warn predators.

Fact #438 · Animals

Certain fish change sex during their lifetime.

Fact #503 · Animals

Certain species of fish build bubble nests.

Fact #511 · Animals