Up: Hadurus arizonensis - http://adventure.howstuffworks.com/survival/wilderness/desert-survival5.ht
The immune system of this scorpion is not very interesting compared to other scorpions, except for its toxicology. This scorpion's body regulates itself to take care of the desert's environmental structure. Like most scorpions, they can sting their enemies with a very deadly toxin, however their main defense mechanism is to scurry away, and hide under a rock. The main ability of this specific scorpion's immune system is that when fighting against other scorpions, it is immune to all forms of poison produced by all known scorpions.