If you live in Nevada, you may notice a sticky residence appearing on your trees as swarms of bugs feast on it. Here's what ...

Scientists have uncovered ancient fossils, prehistoric artwork, and other clues to human evolution. Here are nine of the most revealing discoveries that have changed our understanding of our early ...

The damage is invisible at first, but it doesn’t take long for the leaves to wither, the trunks to weaken, the once-vibrant ...

In Northeast Texas, native ash trees are being threatened by a harmful introduced pest, the emerald ash borer, which is detrimental to only one family of trees. “If 10% of all your trees are one ...