Why Can’t The Amazing Spider Man Shoot Organic Webs?

The Amazing Spider-Man cannot shoot organic webs because the spider bite gave him all the powers of a spider but did not grant him the ability to spin natural webs. In the comics, when Peter is bit by the radioactive spider, he gets all his powers – super-strength, agility, the ability to climb or crawl on any surface, and most famously his spider-sense. But, still, he is unable to produce and shoot organic webs, so he creates his web fluid and mechanical web-shooter to be more like a spider and justify his name.