The sailfish can raise and lower a large dorsal fin to herd fish into tight groups before striking.

Many species of beetles have hardened wing covers called elytra.

Fact #457 · Animals

A hyena’s jaw is powerful enough to crush bone.

Fact #502 · Animals

Some species of penguins can swim at speeds of up to 15 miles per hour.

Fact #251 · Animals

Some birds can navigate using the position of the stars.

Fact #235 · Animals

Some species of spiders can survive underwater for short periods.

Fact #414 · Animals

A sea lion can hold its breath for several minutes underwater.

Fact #400 · Animals

A toucan’s beak is lightweight despite its size.

Fact #526 · Animals

Octopuses have three hearts and blue blood.

Fact #1 · Animals