Xenomorphs

Xenomorphs are a Alien race that is from a Anthology of movies; Alien, Aliens, Alien 3, and Alien Resurrection. They are almost completely black, which makes them harder to see. They have oblong heads, an armored exoskeletons, long claws, and spiked tails. As far as we can see though, they don't have eyes, and if they do, they are under the skin of the forehead. Here's a picture of what they look like:



One of the very distinct features of Xenomorphs, is that they can climb on any solid surface, for example, upside down, or sideways. They also have dorsal tubes on they're backs, which are used as breathing instruments. Xeno's do not require the same elements as us, for example, they don't need the same amount of oxygen as us, if any is needed at all, and this allows them to stay underwater, or in space, for very long durations without dying. Another characteristic that stands out is their acidic blood. It has a green marsh color to it, and can melt through steel, stone, flesh and bone, etc. The final characteristic that I think stands out more than all the others, is the Xenomorphs second pair of jaws. They are very, VERY powerful, and can punch through skulls without any trouble. And plus, they're really creepy.