The Japanese puffer fish creates elaborate geometric sand circles to attract mates.

Blue whales are the largest animals known to have ever lived.

Fact #246 · Animals

Certain frogs can glide from tree to tree.

Fact #394 · Animals

Narwhals are known for their long spiral tusks.

Fact #376 · Animals

A blue-ringed octopus carries venom potent enough to affect humans.

Fact #370 · Animals

A moose has long legs adapted for walking in snow.

Fact #518 · Animals

Some birds can sleep while flying.

Fact #332 · Animals

A cheetah is built for speed with a lightweight body.

Fact #470 · Animals

Dragonflies can fly in all directions, including backward.

Fact #352 · Animals