Sperm Whales Orchestrate Cooperative Birth, Keeping Calf Afloat as a Tight-Knit Group

Field observers off Dominica in July 2023 captured an 11-whale group from two matrilines coordinating a calf’s birth and postnatal care, with a core quartet lifting and maintaining the newborn at the surface for breathing while the wider group stayed cohesive; the study, aided by machine learning and computer vision to track individuals, provides rare quantitative evidence of allocare and complex sociality in sperm whales and was published in Science Advances.