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Ent
Ents are a fictional race of humanoid trees from J. R. R. Tolkien's fantasy world of Middle-earth. They appear to have been inspired by the talking trees of many of the world's folklores (see tree (mythology) for more information). At the time The Lord of the Rings takes place, there are no young ents (known as entings) because the entwives (female ents) were lost.

Treebeard, the oldest living Ent, is described as
large Man-like, almost Troll-like, figure, at least fourteen foot high, very sturdy, with a tall head, and hardly any neck. Whether it was clad in stuff like green and grey bark, or whether that was its hide, was difficult to say. At any rate the arms, at a short distance from the trunk, were not wrinkled, but covered with a brown smooth skin. The large feet had seven toes each. The lower part of the long face was covered with a sweeping grey beard, bushy, almost twiggy at the roots, thin and mossy at the ends. But at the moment the hobbits noted little but the eyes. These deep eyes were now surveying them, slow and solemn, but very penetrating.

Ents are an old race that appeared in Middle-earth when the Elves did. They were apparently created by Eru Ilúvatar at the behest of Yavanna: when she learned of Aulë's children, the Dwarves, she foresaw that they would fell trees, and desired creatures to serve as Shepherds of the Trees to protect the forests from Dwarves and other perils. Although the Ents were sentient beings from the time of their awakening, they did not know how to speak until the Elves taught them. Treebeard said that the Elves "cured us of dumbness", that it was a great gift that could not be forgotten. ("They always wished to talk to everything, the old Elves did.") In the Third Age of Middle-earth, the forest of Fangorn was the only place known still to be inhabited by Ents, although the Ent-like Huorns may have survived elsewhere, as in the Old Forest.
Ents exhibit wide variation in personal traits (height, heft, colouring, even the number of digits), as they came to resemble somewhat the specific types of trees that they shepherded. Quickbeam, for example, guarded Rowan trees and bore some resemblance to rowans: tall and slender, smooth-skinned, with ruddy lips and grey-green hair. Ents share some weaknesses of trees as well, and can be burned and chopped.

Ents are tall and very strong, capable of tearing apart rock and stone. Tolkien describes them as tossing great slabs of stone about, and ripping down the walls of Isengard "like bread-crust". Treebeard boasted of their strength to Merry and Pippin; he said that Ents were much more powerful than Trolls, which Morgoth made in the First Age in mockery of Ents.
The Sindarin word for Ent is Onod (plural Enyd). Sindarin Onodrim refers to the Ents as a race.

http://en.wikipedia.org/wiki/Ent