It would take about 1.2 million mosquitoes biting simultaneously to drain the average human of blood.

Some reptiles can survive long periods without food.

Fact #501 · Animals

A cuttlefish can rapidly change both color and pattern.

Fact #472 · Animals

The Arctic tern migrates farther than any other bird.

Fact #450 · Animals

Snow leopards use their long tails for balance.

Fact #371 · Animals

Certain beetles can produce sounds by rubbing body parts together.

Fact #546 · Animals

Some amphibians undergo dramatic transformations during metamorphosis.

Fact #493 · Animals

The largest known dinosaur species were long-necked sauropods.

Fact #630 · Animals

A mantis shrimp can strike with the speed of a bullet.

Fact #342 · Animals