The wood frog produces cryoprotectants that prevent cell damage when it freezes solid.

A wolf pack operates with coordinated social behavior.

Fact #488 · Animals

Certain fish can produce their own light through bioluminescence.

Fact #372 · Animals

Some birds can imitate sounds from their environment.

Fact #489 · Animals

Some species of jellyfish can shrink and regrow their bodies.

Fact #428 · Animals

Some sharks can reproduce without a mate in rare cases.

Fact #544 · Animals

Some animals use camouflage to avoid predators.

Fact #336 · Animals

Some fish build intricate sand nests.

Fact #436 · Animals

A group of wolves is called a pack.

Fact #112 · Animals