The blue whale's tongue alone can weigh as much as an elephant.

Some birds build elaborate nests.

Fact #308 · Animals

A moose has long legs adapted for walking in snow.

Fact #518 · Animals

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

Fact #411 · Animals

A parrot can mimic human speech sounds.

Fact #429 · Animals

A cheetah can accelerate from 0 to 60 mph in a few seconds.

Fact #363 · Animals

A porcupine raises quills as a defense mechanism.

Fact #524 · Animals

Some mammals hibernate during winter.

Fact #303 · Animals

A blue whale's heart can weigh over 400 pounds.

Fact #104 · Animals