A few years ago, I had the thrill of meeting Lonesome George, the last known Pinta Island giant tortoise. Goats were introduced to his island home in the Galapagos in 1958. They obliterated all of the vegetation on the island, and by the time he was discovered in 1972, all of the other tortoises of Lonesome George’s subspecies — those that hadn’t already been eaten by whalers and Galapagos settlers — had starved to death. For his safety, George was moved to the Charles Darwin Research Station on Santa Cruz Island in the Galapagos.  Forty years later, on June 24, 2012, Lonesome George was found dead in his pen. Goats browse a very wide variety of plants, preferring the tips of woody shrubs and trees. Feral goats…