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intrepidity

(8,373 posts)
15. I had the same question
Wed Jun 7, 2023, 04:02 PM
Jun 2023

I guess this is the answer:

To reconstruct the history of the act, the scientists pulled together hundreds of publications, questionnaire responses and personal notes about masturbating primates from primatologists and zoo keepers. They then mapped the information on to primate evolutionary trees, revealing how the activity reached back through time.

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