Humans are far more monogamous than our primate cousins, but less so than beavers, a new study suggests.
Researchers from the University of Cambridge in England analyzed the proportion of full siblings versus half-siblings across several animal species, as well as various human populations throughout history.
Species and societies that are more monogamous tend to have a greater number of siblings that share both parents, while those that are polygamous produce more half-siblings. (CNN)
Interesting!
ifnottodaywhen.blog 