"Spider silk properties continue to amaze and astound, the more we learn. They are lightweight, and yet one of the toughest natural materials. They are virtually invisible to the human immune system, making spider silk a natural material for medical uses. Mankind already puts the magical threads to use, in applications as varied as weaving a golden cloak from natural spider silk to making dissolving tennis shoes out of a material invented while trying to mimic spider silk. But it could get much better. Scientists at the Perelman School of Medicine at the University of Pennsylvania have sequenced the entire genome of the golden orb spider, one of the most productive of all spiders."