Hippopotamuses secrete a reddish fluid that helps protect their skin.

A group of porcupines is called a prickle.

Fact #358 · Animals

Some butterflies migrate across continents.

Fact #424 · Animals

Sea otters use rocks as tools to break open shellfish.

Fact #43 · Animals

Some birds migrate between hemispheres each year.

Fact #203 · Animals

Some frogs can survive being frozen during winter.

Fact #24 · Animals

A blue-ringed octopus carries venom potent enough to affect humans.

Fact #370 · Animals

Certain birds of prey have exceptionally sharp vision.

Fact #434 · Animals

Certain frogs can glide from tree to tree.

Fact #394 · Animals