There has been a new tortoise species discovered in the island of Santa Cruz. New research has found that two similar species living on the same island, but on opposite sides of the island were said to be related. This new species has come to be named as the Chelonoidis Porteri. Research led by Yale evolutionary biologist Adalgisa Caccone analyzed nuclear DNA and maternally inherited DNA from the two populations, they discovered that the smaller Cerro Fatal and larger Reserva populations were not only different species, but were more closely related to species on different islands than to each other. The only problem they found was that they didn't know which of the two species was the newly found one. The new species was said to be s hybrid. This was found as great surprise by Caccone. Ultimately, the larger Reserva population could stay C. porteri, and the smaller Cerro Fatal population could become Chelonoidis donfaustoi,
http://news.nationalgeographic.com/2015/10/151021-galapagos-tortoise-new-species-animals-science/
http://news.nationalgeographic.com/2015/10/151021-galapagos-tortoise-new-species-animals-science/