The decathlon consists of 10 events over two days — it's considered the ultimate test of athletic versatility.

Some snakes shed their skin multiple times a year.

Fact #485 · Animals

A chimpanzee can use tools to solve problems.

Fact #508 · Animals

Some mammals, like bats, use echolocation.

Fact #465 · Animals

A grizzly bear can run surprisingly fast over short distances.

Fact #492 · Animals

Dragonflies can fly in all directions, including backward.

Fact #352 · Animals

Penguins can drink salt water because of specialized glands.

Fact #362 · Animals

Some butterflies migrate thousands of miles.

Fact #262 · Animals

Some birds can imitate sounds from their environment.

Fact #489 · Animals