So Patrick and I were talking about spider silk, and I recalled an article I read about how spider silk was being replicated inside a cows udder. I told him I'd look up the article for him. OK so my memory was a little off, it was in fact a goat. Anyway here's one article on that subject. It is pretty interesting.

http://www.carleton.ca/catalyst/2003/s2.html

But cows are the future!