The glass frog has transparent skin on its belly, allowing you to see its heart, liver, and intestines.

Some species of jellyfish can shrink and regrow their bodies.

Fact #428 · Animals

Some species of spiders can survive underwater for short periods.

Fact #414 · Animals

A kangaroo cannot walk backward easily.

Fact #375 · Animals

Certain birds build nests on cliffs for protection.

Fact #531 · Animals

Certain insects communicate using vibrations.

Fact #430 · Animals

A moose has long legs adapted for walking in snow.

Fact #518 · Animals

Certain birds use thermal air currents to glide efficiently.

Fact #499 · Animals

A wolf can travel dozens of miles in a single day.

Fact #545 · Animals