SEATTLE — Whale researchers are keeping close watch on an endangered orca that has spent the past week keeping her dead calf afloat in Pacific Northwest waters, a display that has struck an emotional chord around the world and highlighted the plight of the declining population that has not seen a successful birth since 2015.
Researchers have observed the 20-year-old whale known as J35 pushing her dead young along and propping it up while swimming for miles in the waters of Washington state and British Columbia. The calf died July 24 shortly after it was born. Its mother was seen Tuesday night still clinging to the dead calf off British Columbia’s Gulf Islands, said Jenny Atkinson, executive director of the Whale Museum on San Juan Island.
Experts say the orca and other family members traveling with her are grieving or mourning. And while it isn’t uncommon for whales and dolphins to mourn their young, they say, it’s unusual that it has been going on for so long.
“There’s evidence that cetaceans such as dolphin and whales are often attending to dead bodies. Sometimes, it’s because of curiosity or exploration and not necessarily emotion. Other mother dolphins and whales have kept their calves buoyant,” said Barbara King, professor emerita of anthropology at the College of William and Mary and author of “How Animals Grieve.”
“What’s different about J35 is her persistence,” she said, but then asked: “How resilient can she be? How long can she keep this up? Is she eating? Is she taking care of herself?”
The orca and her closely knit pod of whales have been observed taking turns carrying the dead calf, Atkinson said. A crew with the museum’s Soundwatch boater education program has been spending about 11 hours each day tracking J35, also called Tahlequah, and making sure boaters give the whales distance.
Researchers have collected poop samples from the group of whales that includes the grieving mother. They are preparing to try and recover the dead calf to understand more about why it died.
Meanwhile, the images of the whale balancing the dead orca have captivated the public and garnered global attention.
“There’s an optic that’s more powerful than any other statistic. It’s a picture of what we can assume is a heartbroken mother who herself is necessary and precious to this population,” said Jason Colby, professor of environmental history at the University of Victoria and author of “Orca: How We Came to Know and Love the Ocean’s Greatest Predator.”
Not long ago, killer whales were shot at and later captured live for marine parks, but “now we’re seeing the extraordinary spectacle that is exactly the opposite — the emotional public outpouring and sharing in this mother’s grief,” he said.
The distinctive black-and-white orcas have struggled since they were listed as an endangered species in the U.S. and Canada over a decade ago. They’re not getting enough of the large, fatty Chinook salmon that make up their main diet. They also face overlapping threats from toxic contamination and noise and disturbances from boats that can interfere with their ability to forage or communicate.
