Incredible Video Shows Sperm Whales Come Together to Birth a Calf

Key Points:

• On July 8, 2023, scientists recorded for the first time in unprecedented detail the cooperative behavior of two sperm whale family groups assisting in the birth and postnatal care of a calf off the coast of Dominica in the Caribbean Sea.
• The 11-whale group, consisting of two unrelated matrilines, took turns supporting the newborn calf at the surface to help it breathe, with a core group of four whales providing about 96% of the care during the hour following birth.
• This rare observation provides quantitative evidence of allocare—care for non-biologically related offspring—in sperm whales and suggests that such cooperation during birth is key to sustaining their complex social structures.
• The study utilized advanced technology including drones, hydrophones, machine learning, and computer vision to track individual whales and analyze their coordinated behavior, marking a significant advancement in understanding sperm whale sociality.
• Researchers highlight that these findings place sperm whale birth behavior in a comparative context with terrestrial mammals, raising important questions about the cognitive and communication mechanisms supporting such complex social cooperation.