Nature News:Squirrels aren't so bad after all Typical deciduous trees that lose their leaves every winter create a separation zone (abscission layer) between the leaf stem and the branch.

While it won’t be winter for another month or two (hopefully, despite the alarming warming winter trend, winter will eventually come) these trees are bound to still have their leaves through the ...

Mary Alice has always told me that the true beauty of a tree can be seen when the tree has lost its leaves. There have been many poems written about trees. Possibly, the most famous of these poems ...

Volcanic activity will be experienced differently in a warmer world. Researchers need to understand these risks and how they could spiral.