When he was bitten by a radioactive spider, high-school student Peter Parker gained a suite of powers reminiscent of a spider, including agility, wall-crawling, and the ability to sense danger (his trademark "spider-sense"). When Peter learned that his beloved Uncle Ben had been murdered by a thief that Peter himself had selfishly allowed to escape, he realized that with his new powers also came a new obligation of responsibility to use them for good. Since that day, Spider-Man has fought criminals and super-villains while enduring a constant barrage of negative press, a stream of personal losses, and the occasional crisis of confidence. Somehow he manages to maintain a positive attitude, and rarely lacks for a humorous quip when battling bad guys.Marvel Source