These giant two Headed Rattlesnakes . Weigh in at around  500 pounds and vary in length from six to 20 feet, this creature can really ruin a man's day. The good news? The radiation and growth has diluted their poison. you'll only get sick if one bites you, instead of ending up stone cold dead. Of course, they don't really even need that poison. Thanks to their gigantic fangs about six inches long. Albino rattlers are tougher and even more dangerous.

When threatened Rattlers coil up, their two heads weaving to find a good position to strike while their tail rattle hisses a final warning. They are large enough to hunt humans, but tend to prefer easier prey like molerats and radstags unless food has been scarce. They are prized for their, fangs, and leather, which are marks of honor among tribals and some raider gangs.