There has been one observation of inter-species food sharing in false killer whales, a member of the dolphin family (Delphinidae). During an encounter that National Geographic photographer Flip Nicklin had in Hawaii, a false killer whale swam up to the photographer, released a large mahi mahi from its mouth and backed away. The photographer accepted the gift then, returned the fish to the whale. I suppose that is proper etiquette if a large cetacean offers you food while you’re in the water with it.
Wild Dolphins Observed Giving Gifts to Humansthe daily dish
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