Trees are, or soon will be, losing their leaves. That will make their trunks all the more visible. That’s when you’ll begin ...

Question for Dan Gill: Recently I had a large Shumard oak tree planted by a local nursery. In the process of planting, they damaged a small section (five inches by six inches) of the bark, about a ...

The tree as a we now view it—primary trunk, large height, crown of leaves or fronds—didn't clearly exist until the late Devonian. But fossil trunks such as the ones at right (Eospermatopteris, named ...

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