Certain beetles produce chemicals to repel predators.

Some marine mammals communicate through clicks and whistles.

Fact #525 · Animals

A cuttlefish can rapidly change both color and pattern.

Fact #472 · Animals

Certain frogs use bright colors to warn predators.

Fact #438 · Animals

Certain insects can enter a dormant state called diapause.

Fact #399 · Animals

Penguins can drink salt water because of specialized glands.

Fact #362 · Animals

Ravens can solve complex problems in experiments.

Fact #380 · Animals

Some birds sing complex songs to mark territory.

Fact #517 · Animals

Certain owls hunt silently because of specialized feather structures.

Fact #542 · Animals