Rare Dolphin with Thumbs Spotted in Greek Waters

An "extremely rare" dolphin with "thumbs" on its flippers has been photographed in the Gulf of Corinth, near Greece. Researchers from the Pelagos Cetacean Research Institute spotted the dolphin on two occasions and were surprised by its unique flipper morphology. Despite its unusual appearance, the dolphin was able to keep pace with its pod. This is the first time such a dolphin has been observed in 30 years of surveys in the open sea.