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Introduction Spider silks are protein based polymers secreted by a number of glands in the abdomen of spiders. A company named Nexia (Osbourne, 2002) has been successful in making spider silk which they intend to use in several products, they have done this by introducing the gene responsible for making silk in spiders into goats. Why goats ? Why not just use spiders? Spiders cannot be farmed the way silk worms can because they are territorial carnivores (they wind up eating each other when in close proximity for too long ) . So this is where the goats come into play. The mammary gland is a perfect natural factory (Lazaris,2002 ) for the synthesizing and production of proteins. Given the enormous expense of making drugs artificially, transgenic goats offer a brilliant way to make dirt cheap drugs, it is estimated that $50,000 wor