Bonobos show no significant increase in testosterone levels between infancy and adulthood, while male chimpanzees show a significant age-related testosterone increase (slope = 0.033, r = 0.524, p < 0.001, n = 70).
Sources
- Comparative Cognitive Development (dash.harvard.edu)
- https://www.sciencedirect.com/science/article/abs/pii/S003193841300053X (sciencedirect.com)
- https://www.sciencedirect.com/science/article/abs/pii/S0018506X14001469 (sciencedirect.com)
- https://evolutionaryanthropology.duke.edu/sites/evolutionaryanthropology.duke.edu/files/site-images/different-ontogenetic-patterns-of-testosterone-production-wobber-et-al-2013.original.pdf (evolutionaryanthropology.duke.edu)
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