An ostrich's eye is larger than its brain.

Some insects have lifespans of only a few hours as adults.

Fact #411 · Animals

Octopuses have three hearts and blue blood.

Fact #1 · Animals

Some birds can see ultraviolet light.

Fact #120 · Animals

An ostrich's eye is larger than its brain.

Fact #349 · Animals

Some mammals, like bats, use echolocation.

Fact #465 · Animals

Narwhals are known for their long spiral tusks.

Fact #376 · Animals

Certain birds of prey can spot small animals from great heights.

Fact #483 · Animals

A cuttlefish can rapidly change both color and pattern.

Fact #472 · Animals