Firefighters said they stopped the wildfire's forward spread, but there was still the threat of flareups on Tuesday.

Before a discovery in a Panamanian rainforest, “it seemed impossible that lightning could be a good thing for the trees,” a ...

Less than 15 miles from the Silver Fire, the Ancient Bristlecone Pine Forest's trees are thousands of years old, including ...

More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, ...