In Sex at Dawn, Ryan and Jethá argue that humans are more like bonobos. This is, in part, because we both 1) employ diverse sex positions, 2) have sex for non-reproductive ends, and 3) gaze into each other's eyes during sex (when this jives with #1).
In his review (pdf, OA), Ryan Ellsworth disputes their thesis and makes the case for the chimp model. He emphasizes that humans and chimps (but not bonobos) share "sex-based hierarchies, sex-biased cooperation and coalitions, and intergroup hostility."
I've only skimmed Sex at Dawn, but I find Ellsworth's review much more persuasive. I'm happy being chimp-like.
In his review (pdf, OA), Ryan Ellsworth disputes their thesis and makes the case for the chimp model. He emphasizes that humans and chimps (but not bonobos) share "sex-based hierarchies, sex-biased cooperation and coalitions, and intergroup hostility."
I've only skimmed Sex at Dawn, but I find Ellsworth's review much more persuasive. I'm happy being chimp-like.
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| (photo credit to patries71) |
