"Unprecedented Discovery: Rare Dolphin with Thumbs Spotted in Greek Gulf"
Researchers have photographed a striped dolphin in the Gulf of Corinth, Greece, with hook-shaped "thumbs" on its flippers. The dolphin, part of a unique mixed-species society in the area, appeared healthy and active despite its unusual morphology. Experts believe the thumb-like flippers are the result of a genetic defect, possibly caused by constant interbreeding. The dolphin's missing fingers and tissue suggest that cells responsible for forming the equivalent of human index and middle fingers died off during development in the womb.