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 ...

The Mason City Council approved new program for homeowners who have dead or diseased ash trees on their property. The ...

While sketching at the zoo one morning, a small boy asked me for a pencil and a piece of paper. He proceeded to transform the ...

In heavily affected areas, up to 30% of beech trees are killed within seven years of contracting beech leaf disease.

Ash dieback, which was first seen in the UK in 2012, causes leaf loss and crown dieback and can lead to tree death, with fears it could wipe out up to 85% of Britain’s native ash trees, as they ...

Ash dieback, which was first seen in the UK in 2012, causes leaf loss and crown dieback and can lead to tree death, with fears it could wipe out up to 85% of Britain’s native ash trees, as they ...

Ash dieback, which was first seen in the UK in 2012, causes leaf loss and crown dieback and can lead to tree death, with fears it could wipe out up to 85% of Britain’s native ash trees, as they ...

Ash dieback has threatened to devastate British woodlands (Paul Figg/RBG Kew/PA) But now researchers suggest that natural selection in the wild is taking place on thousands of locations within ash ...