Penguins can recognize their mates by vocal calls.

A peacock spreads its tail feathers during courtship displays.

Fact #466 · Animals

A fox has keen hearing adapted for hunting small prey.

Fact #534 · Animals

Certain fish change sex during their lifetime.

Fact #503 · Animals

A woodpecker's skull absorbs shock from repeated pecking.

Fact #393 · Animals

Certain beetles can produce sounds by rubbing body parts together.

Fact #546 · Animals

Some plants respond to changes in light and touch.

Fact #95 · Animals

Some birds can use tools to access hidden food.

Fact #576 · Animals

A cassowary is one of the most powerful birds on Earth.

Fact #557 · Animals