Prehistoric horses were much smaller than modern horses.

Some birds can imitate sounds from their environment.

Fact #489 · Animals

A crocodile can replace its teeth multiple times in its life.

Fact #406 · Animals

Dolphins use echolocation to navigate and hunt underwater.

Fact #12 · Animals

Certain frogs are poisonous to predators.

Fact #418 · Animals

A wolf pack operates with coordinated social behavior.

Fact #488 · Animals

A great white shark can detect electromagnetic fields.

Fact #402 · Animals

Octopuses have three hearts and blue blood.

Fact #1 · Animals

Blue whales can grow longer than 90 feet.

Fact #341 · Animals