A hummingbird's heart beats up to 1,260 times per minute.

Certain frogs can inflate themselves to appear larger to predators.

Fact #377 · Animals

Sea otters hold hands while sleeping to avoid drifting apart.

Fact #364 · Animals

Some birds can fly at high altitudes over mountains.

Fact #323 · Animals

Some snakes can sense heat using specialized pits.

Fact #408 · Animals

Certain species of ants farm aphids for food.

Fact #360 · Animals

Some frogs can change color depending on temperature or mood.

Fact #548 · Animals

Some birds cache food for later consumption.

Fact #461 · Animals

Some birds can mimic human speech.

Fact #268 · Animals