On the Arizona Trail, water lures thirsty hikers and windmills hold promise for energy

Water and wind offer powerful symbols on the Arizona Trail, where thirsty hikers have to hunt harder and windmills stand ...

On the Arizona Trail, a community steps in as fires blacken forests and force detours

My first day on the Arizona National Scenic Trail started with a near-knockout punch of a climb.Start the day smarter. Get all the news you need in your inbox each morning. Within half a ...

New dome-headed dinosaur species discovered in Montana, study says

A new dome-headed dinosaur species was discovered in Montana, a study released this month shows. Researchers discovered the ...
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The Dinosaurs of North America Were Thriving Up Until an Asteroid Wiped Them Off the Face of the Earth, Scientists Argue

A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago ...