We all know where wool and alpaca come from, as well as yak, bison, mohair, cotton, and even soy. But how about silk? Silk worms, of course! Tuesday afternoon safari class member, KAREN BUSCEMI is keeping silk worms and brought them in to share with us, including an ecology lesson in the process. Those tiny little gray cylinders in the photo are silk worms eating mulberry leaves. Your silk yarns begin as the fiber that the silk worms use to spin their cocoons for when they enter the pupae stage of development. The cocoons are removed before the worms hatch into moths and voila—ultra-fine filaments of silk. Okay, a little creepy but cool at the same!