Dolphins are extremely smart marine mammals and are a part of the family of toothed whales that features orcas and pilot whales. they’re found worldwide, largely in shallow seas of the continental shelves, and are carnivores, largely feeding fish and squid. Dolphin coloration varies, however they’re usually grey in color with darker backs than the remainder of their bodies.Dolphins consume a spread of prey together with fish, squid and crustaceans.Dolphins square measure documented for his or her gracefulness and elvish behavior, creating them a favorite of life watchers. several species can leap out of the water, spy-hop (rise vertically out of the water to look at their surroundings) and follow ships, typically synchronizing their movements with each other. Scientists believe that dolphins conserve energy by swimming aboard ships, a observe called bow-riding.