Earth Matters

Lion cubs take a hair-raising swim across a river

Finding peace with a pack, a trail and lots of time

12 astonishing facts about horses

A nation divided ... into perfect square miles

California delivers blow to SeaWorld's captive whale program

Hog-nosed rat with vampire teeth is scary cute

Why the next super telescope matters

Pluto has its own wild blue yonder

Phallus-shaped mushroom can instantly trigger an intense female orgasm

What exactly makes skunks so stinky?

Himalayas home to sneezy monkey, 'walking' fish

Earth gets a surge of new ocean sanctuaries