Chimpanzees can cooperate to achieve shared goals.

Octopuses have three hearts and blue blood.

Fact #1 · Animals

Some birds can imitate sounds from their environment.

Fact #489 · Animals

Certain birds build hanging nests from woven plant fibers.

Fact #471 · Animals

Some amphibians can absorb oxygen through their skin.

Fact #328 · Animals

Certain species of fish build bubble nests.

Fact #511 · Animals

An ostrich's eye is larger than its brain.

Fact #349 · Animals

Whales are mammals and must breathe air.

Fact #265 · Animals

Some birds can see ultraviolet light.

Fact #120 · Animals