Apparently, there are companies out there who provide goats for rent for the simple task of clearing brush.  Rent-a-Ruminant, Goats R Us, and Eco-Goats are three such companies whose goats eat everything from grass and weeds to thorny plants and poison oak.  A few months ago, Google decided to ditch their lawn mowers and go the way of the goat.  Very cool, though expensive.  (via Boing Boing) #nature