Sperm Whales Exhibit Cooperative Calf Support
Researchers from MIT's Project CETI recorded on July 8, 2023, an 11-whale group cooperatively supporting a newborn sperm whale in the Caribbean off Dominica, using drones, hydrophones, machine learning and computer vision. The team documented sustained allocare—every adult took turns keeping the calf afloat for roughly an hour—and published quantified behavioral analyses in Science Advances, suggesting cooperative birth care underpins complex sperm whale sociality.
Key Points
- 1Documented cooperative postnatal care: 11 sperm whales alternated supporting a newborn over about one hour.
- 2Suggests allocare among kin and non-kin, shaping complex sociality and selection for group bonds.
- 3Enables quantitative behavioral and ML analyses of social coordination; informs cetacean cognition and conservation.
Scoring Rationale
Strong novelty and peer-reviewed interdisciplinary evidence; relevance limited mainly to biological research and applied ML contexts.
Sources
Public references used for this report.
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