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Cuttlefish


Enlarge / A common cuttlefish, Sepia officinalis, in the Marine Resources Center at the Marine Biological Laboratory, Woods Hole, MA. A new study finds the cuttlefish can delay gratification—a key feature of the famous “marshmallow test.” Alexandra Schnell Certain species show a remarkable ability to delay gratification, notably great apes, corvids, and parrots, while other …