No, this isn't an old April Fools' Day joke. According to the official Google Blog, "A herder brings about 200 goats and they spend roughly a week with us at Google, eating the grass and fertilizing at the same time. The goats are herded with the help of Jen, a border collie. It costs us about the same as mowing, and goats are a lot cuter to watch than lawn mowers." Continue reading for more.