Large brains require warm bodies and big offspring
Peer-Reviewed Publication
Updates every hour. Last Updated: 4-Nov-2025 17:11 ET (4-Nov-2025 22:11 GMT/UTC)
Energy requirements: Brain tissue requires a lot of energy. Therefore, the organism must be able to provide this energy to support a larger brain.
Research findings: The study shows that body temperature has a significant influence on brain size in all vertebrates. The size of offspring also influences brain size in adulthood, as large brains in young animals incur high energy costs.
Evolutionary development: A constant body temperature enabled the growth of larger brains and opened up new evolutionary possibilities.
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