![image of dolphin's thumb on a flipper](https://media.greenmatters.com/brand-img/TrvLzrd8p/640x335/dolphin-with-thumbs-1-1702404352769.jpg 640w)
Rare Dolphin With Thumbs Spotted in Gulf of Corinth
In the Gulf of Corinth, researchers spotted a dolphin with thumbs on both flippers. Find out whether this is common and how the dolphin's thumbs work.
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