Jan. 2012 - A Galapagos Islands tortoise species known as Chelonoidis elephantopus, thought to be hunted to extinction over 150 years ago, may still be living in the Islands according to a recent Yale University study[1].
 
Yale researchers from the Department of Ecology and Evolutionary Biology discovered the genetic signature of the C. elephantopus tortoise among blood samples taken from tortoises on Isabela Island, indicating hybridization between species.