Spiders have always had a bad rap, which makes people immediately shriek in fear whenever they discover them in the home. A lot of spiders are pretty harmless though, and pretty much all spiders are good for the eco system we live in. In Spidersilk the novel, Mark is actually protected by spiders which shows there's more to these creatures than fangs and legs. To learn more about some amazing spider facts check out this page: http://insects.about.com/od/spiders/a/10-Fascinating-Facts-About-Spiders.htm