Penguins propose to their mates by offering a pebble; females reject unsuitable males by walking away.

Some insects undergo complete metamorphosis from larva to adult.

Fact #440 · Animals

Some frogs carry their tadpoles on their backs.

Fact #354 · Animals

A falcon can dive at speeds over 200 mph.

Fact #412 · Animals

Some birds migrate using landmarks and stars.

Fact #477 · Animals

The platypus is one of the few mammals that lay eggs.

Fact #382 · Animals

Some lizards can detach their tails to escape predators.

Fact #509 · Animals

A falcon can dive at extraordinary speeds.

Fact #520 · Animals

Certain species of octopus are known to use coconut shells as shelter.

Fact #410 · Animals