Earth Matters

10 of the world's most wondrous natural arches

9 surprising facts about Neanderthals

A cow's incredible bid for freedom ends in tragedy

Przewalski's horse: 10 things you didn't know about the last 'wild' horses on Earth

At 67 years old, Wisdom the Laysan albatross hatches another chick

Peru designates 2 million acres of rainforest as a national park

These black holes may erase your past and offer an unlimited future

First video of dumbo octopus hatchling is surprisingly cute

Divers reveal more secrets about the world's longest underwater cave in Yucatan Peninsula

Rare flooding leaves jungle trail submerged in crystalline water

5 things you didn't know about sea pigs

Does the world's 'loneliest' tree mark the start of a new epoch?