The Pinta Island tortoise is the rarest animal in the world, as only one is left. Lonesomelives on the island of Pinta, and, seems to be sixty to ninety years of age, and in good health. A recent attempt to exterminate goats from this island is complete, and the vegetation is back to it's former state, so officials expect him to continue in his good health.
Since George is the only living Galápagos tortoise, there have been concerns about ways to continue his subspecies. Attempts at mating the tortoise have been unsuccessful for the past few decades, most likely because of the lack of a female of the same subspecies. So, researchers at the Darwin Station have offered a $10,000 dollar reward for anyone who can find a suitable mate for George.
There have been suggestions that there are other tortoises like George, but have not been proven.