Earth Matters

Zookeepers get clever to weigh animals

10 famous horses from history

Earth gets a surge of new ocean sanctuaries

Ancient marsupial 'micro lion' discovered in Australia

World's largest scale model solar system spans 11 Swedish cities

Could a small Rhode Island wind farm revolutionize U.S. energy?

Yellowstone fires cause road closure into national park

This giant pearl worth $100 million spent a decade under a fisherman's bed

Seal hops on tour boat as killer whales circle

Orphaned cougar cubs get a second chance at The Wildcat Sanctuary

Sea urchins have the weirdest way of being born

It's good to be the king! Penguin gets a promotion at Edinburgh Zoo