When storm season hits, trees can go from quiet background to major problem fast. A weak branch or leaning trunk might ...

In the fall, leaves from the tree are blown onto your yard; in the winter, the wind splinters its branches; in the spring, its foliage blocks sunlight from your window; and in the summer ...

My colleagues and I try to explain how treelike structures such as veins and arteries, lungs and leaves fine-tune their ... The same principle appears in tree branches as well.

Like the branches, twigs and leaves of a tree, fractals repeat the same patterns ... shows a series of black lines against a gray background, but the painting is nonetheless instantly recognizable ...

My colleagues and I try to explain how treelike structures such as veins and arteries, lungs and leaves fine-tune their ... The same principle appears in tree branches as well.

OUT OF THE BLUE, some branches at the top of my neighbor’s river birch tree suddenly looked as if they had been stripped of leaves. A close look at the tree showed masses of caterpillars ...

They don’t snore, but might creak during their slumbers. For the first time, trees have been shown to undergo physical changes at night that can be likened to sleep, or at least to day-night ...

The Tree of Life is flourishing. The Web-based project, a massive collaboration among scientists from all over the world, is growing more “leaves” and “branches” all the time. The project ...

Some trees have ... clean up the leaves yourself. After all, the law says they're yours now. Can you trim a neighbor's tree that's over your property line? If a neighbor's tree branches hang ...