새폴더 : 남성 성기와 버섯
너도 다 이유가 있구나
3min
참고문헌
- ・ 1분 과학 (https://www.youtube.com/watch?v=Uiw8-HGIogk)
- ・ Gordon G Gallup, Semen displacement as a sperm competition strategy : Multiple mating, self-semen displacement, and timing of in-pair copulations, Hum Nat.
- ・ Gordon G. Gallup, The human penis as a semen displacement device, Evolution and Human Behavior
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