Fun Facts

Mexican Axolotl

the Mexican axolotl salamander has the rare trait of retaining its larval features throughout its adult life. This condition means it keeps its tadpole-like dorsal fin, which runs almost the length of its body, and its feathery external gills, which protrude from the back of its wide head.

The Tardigrade Is Nature’s Toughest Animal

Earth’s most tenacious creature can live in boiling water, solid ice, and the intense radiation of space. It can survive a decade in a desert, without a drop of water to drink, or in the deepest trenches of the sea.

So what gives the tiny tardigrade its enormous strength? Find out below.

1. Tardigrades change form to survive without water.

Poison Dart Frog.

The golden poison dart frog is considered one of the most toxic animals on Earth. A single specimen measuring two inches (five centimeters) has enough venom to kill ten grown men. Indigenous Emberá people of Colombia have used its powerful venom for centuries to tip their blowgun darts when hunting, hence the species' name.