Dolphins are considered as very highly intelligent marine mammals. They are also part of the family of toothed whales that includes orcas and pilot whales. You can see them everywhere and there are worldwide, mostly in shallow seas of the continental shelves, and are carnivores, mostly eating fish and squid. In this video you see a dolphin kisses a dog which proves that dolphins in general are emotional and behaves like human.
a snap shot
The video