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Scientists know more about the surface of Mars than about...

Imagine a world filled with giant dinosaurs and their tiny...

Eighteen thousand years ago, on a windswept bluff in what...

Sharks have spent decades starring as villains, with sudden attacks...

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A rare young pygmy sperm whale died near the Honduran...

Dogs can sense more from humans than other humans can....

Golden Eagles glide over wide desert valleys with calm, steady...

Handing peanuts to a squirrel in a city park may...