The intellectual capacity of dolphins may still be a subject of study and debate - but one needn't look too hard to find evidence that their emotional experience is not so unlike our own.
Researchers from the conservation group Oceanomare Delphis recently made a heartbreaking discovery off the coast of Italy. Two miles from shore, they encountered a bottlenose dolphin supporting the body of her deceased calf, apparently unwilling to leave it behind even after death.
"The dolphin was holding up and carrying the lifeless body, trying to keep it afloat," according to a YouTube post from the group. "In the absence of specific information, we suppose that the adult individual was the mother. Near the mother-baby pair there was also another individual, showing an accompanying/supporting behavior."