Dumblocks

The Dumblocks are a humanoid species of stupid, vicious bruits who live underground. They are one of the two species the human evolution will be diverged into by the year 5000000. The Dumblocks lived side-by-side with the intellectually and morally advanced creatures until 5000005, when they rebelled and took over Earth.

Trivia

 * The Dumblocks resemble the Morcs from "Bender's Game".
 * The species' name might come from and duoblock.