A woodpecker's tongue wraps around the back of its skull to cushion its brain during pecking.

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

Fact #345 · Animals

A blue whale's heart can weigh over 400 pounds.

Fact #104 · Animals

Archerfish shoot jets of water to knock insects off branches.

Fact #346 · Animals

Certain birds build nests on cliffs for protection.

Fact #531 · Animals

Penguins can drink salt water because of specialized glands.

Fact #362 · Animals

Some insects have lifespans of only a few hours as adults.

Fact #411 · Animals

A lion's roar can be heard from several miles away.

Fact #439 · Animals

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

Fact #400 · Animals