Scientific Failure

This creature was a failed experiment created by a mad scientist trying to create a super human. The scientist injected a human with the DNA of a spider, for increased jump height, sight, and climbing skill, a zombie, for increased strength, and a creeper, for greater stealth. The experiment failed and this creature went rouge and killed the scientist who created it. The creature had destroyed the lab and found the area to be dangerous, so it traveled across the sea to an island where it asexually reproduced and formed it's own species. This species split up and each went off to other lands.