A striped dolphin with thumb-like flippers was spotted in the Gulf of Corinth in Greece by researchers with the Pelagos Cetacean Research Institute.

A dolphin spotted off the coast of Greece stuck out from their pod like a sore thumb! The striped dolphin, which has flippers that resemble thumbs, was spotted twice this summer in the Gulf of ...

As mammalian anatomy expert Lisa Noelle Cooper told the website, the cell expression in dolphins leads those bones to form into flippers rather than humans' paddle-like hands.

Lisa Noelle Cooper, an associate professor of mammalian anatomy and neurobiology at the Northeast Ohio Medical University, agreed that the dolphin’s defect is likely rooted in its genes. “Given that ...