When Dolphins Carry Their Young: Care, Cost, and Questions

Scientists have long documented that dolphins sometimes carry dead calves. Researchers have recorded instances in many regions and in several species, and herds often respond around the dead young. Although a dead calf cannot swim, the adult may keep it afloat and hold it at the surface. This action is part of epimeletic behaviour, a term used by researchers for caregiving toward sick or dead individuals.

Since mothers most often take the lead, observers describe female-led care and frequent escorting by other dolphins. While the exact emotional state of dolphins is unknown, experts have noted that the behaviour can resemble mourning and prolonged attention. Studies published in scientific journals report that cetaceans show lifting, carrying, and close contact with dead calves, and these actions have been observed for hours or days. Therefore, scientists continue to collect reports and acoustic recordings to learn more.