Semantic memory (facts) and episodic memory (events) are distinct systems — they dissociate in amnesia.

A sea turtle's gender is influenced by incubation temperature.

Fact #379 · Animals

A kangaroo uses its tail for balance while hopping.

Fact #474 · Animals

Some beetles can lift objects many times their own weight.

Fact #378 · Animals

A hummingbird's heart can beat over 1,000 times per minute.

Fact #345 · Animals

The Earth's oceans contain over 200,000 identified species.

Fact #180 · Animals

Some birds can imitate sounds from their environment.

Fact #489 · Animals

A giraffe's neck contains the same number of vertebrae as a human's.

Fact #398 · Animals

Some birds migrate thousands of miles each year.

Fact #77 · Animals