Everyone remembers the old tree-looking thing with eyes, right? Yeah, that's an Ent. They are the tree-shepherds, with a language of their own, which, as Treebeard himself says, “You must understand, young Hobbit, it takes a long time to say anything in Old Entish. And we never say anything unless it is worth taking a long time to say.” They used to have females, as told in the books, but the Entwives left to start a garden east of the Fangorn Forest (in what ended up as the Brown Lands) towards the end of the Second Age. Their husbands went searching for them, but they were not found. It is said that they were put on Earth by Yavanna to protect her trees along with their male counterparts. The Entwives are described by Treebeard as having "hair parched by the sun to the hue of ripe corn and their cheeks like red apples. Yet their eyes were still the eyes of our own people," but other than that, we know little of their appearance. "Like the males, they looked after the growing things of Middle-earth, but Entwives preferred smaller plant life such as: small trees, grasses, fruit trees, flowers, and vegetables, while males tended the larger trees." -Wikipedia