It's a rainy day here in Maine and after a little trail run with my dogs, my feet were soaked! My Smartwool socks keep my feet relatively warm, but do nothing to keep them dry. This scenario always makes we wonder about two things. First, why don't my Smartwool socks shrink when I wash and dry them? Second, why don't sheep shrink in the rain? The answer to the first question is that the socks aren't 100% wool. The answer to the second question is found in a clever MinuteEarth video titled Why Don't Sheep Shrink in the Rain?