New video shows humpback whale carrying dead calf in rare sign of grief

UPDATE - follow-up to Humpback whale seen grieving dead calf in rare footage: "Heartbreaking to watch" - CBS News: New video evidence captured by researchers shows a humpback whale mother displaying strong grief-like behavior while swimming alongside a stillborn calf. Experts who reviewed the rare footage call the recorded actions heartbreaking to watch. The new clips add to ongoing scientific study about how large marine mammals experience the loss of their offspring in the wild.