Dolphins have unique signature whistles that function like names, allowing them to call and identify each other.

Some amphibians undergo dramatic transformations during metamorphosis.

Fact #493 · Animals

Some insects can lift many times their body weight.

Fact #213 · Animals

Some birds can see ultraviolet light.

Fact #120 · Animals

A chimpanzee can use tools to solve problems.

Fact #508 · Animals

A polar bear’s sense of smell is extremely powerful.

Fact #486 · Animals

Some birds can mimic human speech.

Fact #268 · Animals

Certain insects communicate using vibrations.

Fact #430 · Animals

Some animals use echolocation to navigate in darkness.

Fact #278 · Animals