Male lions do about 20 hours of sleeping and resting per day.

A parrot can mimic human speech sounds.

Fact #429 · Animals

Certain octopus species are known for their intelligence.

Fact #495 · Animals

Some birds build elaborate nests.

Fact #308 · Animals

Some sharks can reproduce without a mate in rare cases.

Fact #544 · Animals

Some birds use tools to extract insects from wood.

Fact #416 · Animals

Some frogs carry their tadpoles on their backs.

Fact #354 · Animals

Some species of octopus can escape through very small openings.

Fact #451 · Animals

A hippopotamus can hold its breath underwater for several minutes.

Fact #433 · Animals