Scientists recently discovered a new species of green anaconda in the Amazon rainforest. A new Nat Geo series shows the ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Farmer Wilson Bentley was the first to photograph the tiny snow crystals individually, and his collection reveals that each ...

Visiting a national park often involves scanning the horizon for charismatic animals. And most visitors arrive with a mental ...