A sheep's natural wool is naturally coated in lanolin, a substance which prevents the wool fibers from locking together and therefore prevents the sheep from shrinking. Once the fibers are woven together the lanolin is disturbed, and can then become smaller (shrinking the wool).
Sincerely, I was curious, too.
Dear dentist, Sorry about that punch in the face... Sincerely, it sounded like a Decepticon was in my mouth. · 13 minutes ago
Dear sexist boys, Scientists discovered a way to make artificial semen in labs. Sincerely, you're no longer needed. · 14 minutes ago
Excuse my profanity. I was mad.
Dear Disney, You do realize that once a female Clownfish dies, the male becomes a female. So technically Nemo was looking for his mommy, not daddy. Sincerely, biology student. · 15 minutes ago
^ that would have been better.
Dear dentist, Sorry about that punch in the face... Sincerely, it sounded like a Decepticon was in my mouth. · 15 minutes ago
Or did I?
Dear dentist, Sorry about that punch in the face... Sincerely, it sounded like a Decepticon was in my mouth. · 15 minutes ago