Fifty thousand years ago, North America's landscapes were alive with an astonishing array of enormous creatures. Massive ...

TOPEKA, Kan. (AP) — The U.S. government is preparing to breed billions of flies and dump them out of airplanes over Mexico ...

Sitting in an old-growth spruce fir forest, Doug Smith says he can see first-hand the impact of reintroducing wolves on the ...

"St. Olga of Kwethluk, Matushka of All Alaska," as she is officially known, was canonized June 19 as the first female ...