Lonesome George, a Pinta Island giant tortoise, spent the latter half of his hundred years munching on cacti and roaming around the Charles Darwin Research Station on the Galápagos island of Santa Cruz. He borrowed his name from the 1950s American comedian and actor George Gobel and one of the three B-52 Stratofortresses that completed the first non-stop jet circumnavigation of the world in 1957.