Tolkien didn\'t invent Dwarves, but he did create what we currently hold to be the fantasy model of Dwarf. Small, ugly, mean with an axe and hazardous on the kiwer extremities.
Tolkien spent most of his life inventing multiple dialects, modern, ancient, and pidgin, of Qenya (Elvish, though my spelling may be off - I\'m doing this sans reference) but didn\'t bother to mention how the dwarves procreate. I am firmly of the unfounded beliefe that this is what lead to the dwarves disliking elves in general.

Tree-Ents were invented by Tolkien (Tree-herders) - EQ and D&D messed them up rather horribly, but these things happen, and I\'m sure Treebeard won\'t gather up his cronies and tear down Hasbro or Peter Jackson. Then again, it DOES take them an awful long time to make a decision.....
A dwarf without a beard is just a midget.