Cats purr at frequencies (25–50 Hz) that promote bone healing and growth.

Some plants respond to changes in light and touch.

Fact #95 · Animals

Some species of jellyfish glow in the dark.

Fact #357 · Animals

Some birds can see ultraviolet light.

Fact #120 · Animals

Certain frogs are poisonous to predators.

Fact #418 · Animals

Certain birds use thermal air currents to glide efficiently.

Fact #499 · Animals

Some species of jellyfish can shrink and regrow their bodies.

Fact #428 · Animals

Some lizards can run briefly on water.

Fact #568 · Animals

A snow owl hunts primarily in open landscapes.

Fact #512 · Animals