The tarsier's eyes are each as large as its entire brain.

A chimpanzee can use tools to solve problems.

Fact #508 · Animals

Some species of octopus can change both color and texture.

Fact #343 · Animals

Some spiders use vibrations to detect trapped prey.

Fact #455 · Animals

A wolf's howl can travel several miles.

Fact #427 · Animals

Some butterflies migrate thousands of miles.

Fact #262 · Animals

Some species of ants wage organized territorial battles.

Fact #401 · Animals

A hawk has sharp vision adapted for hunting.

Fact #496 · Animals

Some birds can fly at high altitudes over mountains.

Fact #323 · Animals