A dog's sense of smell is estimated to be up to 100,000 times more sensitive than a human's.

Some birds can fly for months without landing.

Fact #164 · Animals

A toucan’s beak is lightweight despite its size.

Fact #526 · Animals

Certain beetles can produce sounds by rubbing body parts together.

Fact #546 · Animals

Certain species of fish build bubble nests.

Fact #511 · Animals

Some species of jellyfish are biologically immortal under certain conditions.

Fact #159 · Animals

Some frogs can survive being frozen during winter.

Fact #24 · Animals

The Amazon rainforest contains an extraordinary diversity of plant and animal species.

Fact #16 · Animals

Many species of beetles have hardened wing covers called elytra.

Fact #457 · Animals