Throughout eons of evolution, the natural world has played host to this never-ending competition. Since the dawn of time roughly ninety-nine percent of all species have become extinct. In order to survive, all creatures, including man, must treat life as a battlefield and master the natural weapons and defenses that have evolved: Tyrannosaurus Rex's 13-inch canines; the gecko's Velcro-like toe pads; the bald eagle's telescopic vision that is capable of spotting a hare a mile away. What is the history of these evolutions and how did they come about? They didn't just appear arbitrarily, they evolved for a common reason - to give these animals a critical edge in interspecies warfare. To evolve is to conquer!