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Humans Rank Seventh in Monogamy Among 35 Species

12/10/2025

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Story summary
  • A study from the University of Cambridge ranks humans seventh out of 35 species in monogamy, with 66% full-sibling rate.
  • Humans are monogamous, unlike chimpanzees and gorillas, which show more promiscuous mating patterns.
  • The findings were detailed in the Proceedings of the Royal Society B.
  • Top-ranked species include the California deermouse at 100% full siblings, followed by the African wild dog and Damaraland mole-rat.