The peacock's tail reduces survival but increases mating success — a classic trade-off in sexual selection.

Some frogs can change color depending on temperature or mood.

Fact #548 · Animals

Some species of bats use echolocation to hunt in darkness.

Fact #390 · Animals

Some insects communicate using pheromones.

Fact #469 · Animals

A great horned owl has powerful talons for hunting.

Fact #449 · Animals

A blue whale's tongue can weigh as much as an elephant.

Fact #443 · Animals

Some birds can navigate using the position of the stars.

Fact #235 · Animals

Dragonflies can fly in all directions, including backward.

Fact #352 · Animals

Clownfish can change sex during their lifetime.

Fact #361 · Animals