In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan.
Similar behavior can also be seen in other socially cohesive animals with relatively long life spans, such as primates and dolphins, he added. Calf mortality is high: Only about 1 in 5 orca ...