Weeping whales: Stillborn humpback whale grieving documented

Humpback whale mothers may experience grief when their calves die, a rare observation reported by researchers from Griffith University and the Sea World Foundation. The study, which tracked a small population of humpbacks in the Southern Hemisphere, used long‑term acoustic monitoring and satellite tracking to document changes in maternal behaviour following the loss of a calf. Researchers noted a marked reduction in feeding activity and increased time spent near the site of the death, suggesting a behavioural response that could be interpreted as mourning.

The findings, published in a peer‑reviewed journal, provide the first systematic evidence of emotional responses in cetaceans and highlight the complex social bonds that exist within humpback populations. By linking physiological stress markers with observed behavioural changes, the team argues that the loss of a calf triggers a measurable grief response in the mother, a phenomenon previously documented only in a handful of mammalian species. The research underscores the importance of protecting these vulnerable animals and offers new insights into the emotional lives of marine mammals.