That scar is an artifact of a process called grafting, or fusing two separate pieces of wood into a new tree. From citrus to ...

Every year a new ring is added to a tree's trunk and branches ... to determine a general area in which the wood grew, and to find out about past climates. This Hot Science lets you assemble ...

Tree trunks and unidentifiable slabs of wood lie on the ground, perhaps thousands of years older than the oldest living wood.

Ants bore into the tree trunk, causing a wound and bringing in ... it needs to be separated from the healthy Aquilaria wood around it. In a painstaking task that often takes hours, resin-infused ...