The frigate bird inflates a red throat pouch the size of a balloon to attract mates.

A moose has long legs adapted for walking in snow.

Fact #518 · Animals

The Arctic tern migrates farther than any other bird.

Fact #450 · Animals

Some birds can use tools to access hidden food.

Fact #576 · Animals

A meerkat stands upright to scan for predators.

Fact #547 · Animals

Certain fish live in symbiotic relationships with other species.

Fact #535 · Animals

Some species of spiders can survive underwater for short periods.

Fact #414 · Animals

Certain birds build nests on cliffs for protection.

Fact #531 · Animals

The largest known dinosaur species were long-necked sauropods.

Fact #630 · Animals