Otters have a pocket of loose skin under their arms where they store their favorite rocks.

Certain ants can detect chemical trails left by their colony.

Fact #448 · Animals

Some amphibians undergo dramatic transformations during metamorphosis.

Fact #493 · Animals

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

Fact #443 · Animals

Certain frogs can inflate themselves to appear larger to predators.

Fact #377 · Animals

A crocodile’s teeth are replaced throughout its lifetime.

Fact #532 · Animals

Dragonflies can fly in all directions, including backward.

Fact #352 · Animals

Some birds can fly for months without landing.

Fact #164 · Animals

Some birds cache food for later consumption.

Fact #461 · Animals