The fairy fly is the smallest known insect, measuring only 0.005 inches long.

A hyena’s jaw is powerful enough to crush bone.

Fact #502 · Animals

Ravens can solve complex problems in experiments.

Fact #380 · Animals

Some fish use tools to crack open shellfish.

Fact #405 · Animals

Some species of penguins can swim at speeds of up to 15 miles per hour.

Fact #251 · Animals

Certain insects can mimic leaves to avoid predators.

Fact #463 · Animals

Some birds build elaborate nests.

Fact #308 · Animals

Some marine mammals communicate through clicks and whistles.

Fact #525 · Animals

Some beetles produce defensive chemicals to deter predators.

Fact #481 · Animals