Researchers document first known case of a humpback whale mother guarding a stillborn calf

UPDATE - follow-up to Do whales grieve? Rare footage of humpback alongside stillborn calf suggests they might - The Guardian: Scientists have recorded the first-ever instance of a humpback whale mother exhibiting grief-like behavior while staying close to a stillborn calf. Observers documented the animal carrying and watching over the dead young, pointing to signs of deep emotional distress similar to mourning in mammals.