In Spidersilk the novel, the main character, Mark, is protected by spiders from another dimension. These spiders are as big as a gaming console and produce strong spider silk. In our world, spiders vary in size and shape, but they all produce strong spider silk. Thanks to pop culture, many people are curious as to what would happen if a spider who has been exposed to radiation would do to a human being. The concept of Spiderman in the comics instantly comes to mind, but in our reality its more than likely that the spider’s radiation will do absolutely nothing to you if you’re bitten. However; if you do come across a spider that has been affected by radiation, the presence alone might be enough to cause harm.  

For more on this, check out these links: http://www.slate.com/articles/health_and_science/explainer/2012/07/spider_man_what_happens_if_you_get_bitten_by_a_radioactive_spider_.html

http://www.world-nuclear.org/information-library/safety-and-security/radiation-and-health/naturally-occurring-radioactive-materials-norm.aspx