Humpback whale mother exhibits postmortem attentive behavior toward stillborn calf

Consensus Summary

In July, a humpback whale mother off Australia’s Gold Coast exhibited rare postmortem attentive behavior toward her stillborn calf, remaining beside it for more than an hour. Underwater footage captured the mother repeatedly touching the motionless calf with her head and pectoral fin, while a second adult whale, likely an escort, stayed nearby. The calf lay motionless on the seafloor, and the mother made no attempt to lift it to the surface, suggesting recognition of its death. Both *The Guardian* and ABC report that members of the public later observed two adult humpback whales lingering in the area over the next two days, though researchers could not confirm their identity.

This encounter marks the first documented case of a humpback whale mother caring for a deceased newborn calf, offering a rare glimpse into the emotional lives of baleen whales. Researchers emphasize that such behavior has been more commonly observed in toothed whales, such as killer whales, which have been documented carrying dead calves for days or even weeks. The Guardian notes that killer whale Tahlequah carried her dead calf for 17 days over more than 1,500 kilometres in 2018, illustrating the strength of maternal bonds in these species. However, humpback whale calves often sink quickly after death, making such observations exceedingly rare.

Dr. Olaf Meynecke, a marine scientist at Griffith University, led the research and described the behavior as a 'unique way of observing animal behavior.' He noted that the whales were not traveling or socializing but instead remained in the same spot, milling around the calf’s body. ABC reports that SeaWorld Foundation rescue boat captain Andrew Mulville, who filmed the encounter, had spent more than a decade working with whales and had never witnessed such behavior before. Mulville’s underwater footage provided critical evidence, as he recognized the unusual nature of the scene immediately. Both sources highlight the challenges of interpreting whale behavior, as scientists avoid anthropomorphizing their actions.

While both articles agree on the core details of the event, they differ slightly in emphasis. The Guardian provides broader context about humpback whale biology, including their almost year-long pregnancy and the critical first months of a calf’s life, while ABC focuses more on the human observers and the rarity of the footage. The Guardian also references historical cases of killer whales carrying dead calves, whereas ABC highlights the technical challenges of documenting such events due to the buoyancy of humpback whale calves. Neither source contradicts the other on key facts, though the phrasing of the timeline—'last July' versus 'July last year'—reflects minor stylistic differences.

The discovery raises important questions about how baleen whales process death and whether they experience grief in a human-like sense. Researchers caution against assuming emotional states in animals but acknowledge that the observed behaviors—such as prolonged attention to a deceased calf—resemble responses seen in other highly social species, including elephants and great apes. The Guardian suggests that improved scientific equipment and increased whale populations may lead to more such observations in the future. Meanwhile, ABC notes that drones could play a role in documenting similar events more effectively, helping scientists better understand these complex behaviors.