Some species of turtles can breathe through their cloaca underwater.

Some insects undergo complete metamorphosis from larva to adult.

Fact #440 · Animals

The ozone layer is located in the stratosphere.

Fact #140 · Animals

The Earth's surface is constantly reshaped by natural forces.

Fact #224 · Animals

Certain fish clean parasites off larger fish.

Fact #523 · Animals

A chameleon changes color primarily for communication and temperature control.

Fact #431 · Animals

A zebra’s stripes may help confuse predators.

Fact #500 · Animals

Certain birds use mud to construct their nests.

Fact #562 · Animals

Some plants respond to changes in light and touch.

Fact #95 · Animals