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'Racing Extinction' sounds the alarm on Earth's disappearing species

10 national animals that are rare, unusual, endangered or completely nonexistent

An intimate look at Yellowstone's most famous grizzly mama

Gold nugget floated on top of cappuccino foam

Human betrayal drove rapid spread of our species around the world

Men do less housework than they think

King Tut's tomb likely has hidden, undiscovered rooms

10 super easy breakfast microwave mug recipes

Why Black Friday is such a sign of the times

Baked Goat Cheese with Crisps

10 mind-boggling slow-motion videos of nature

What is this weird purple slime that is clotting Norway's fjords?