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What makes men so manly? Video begins with a discussion of the y-chromosome and tracks it back through history. It surprises many to learn everyone seems to have one common male ancestor. Then it discusses sexual dimorphism and the connections between testosterone, cortisol, and voice pitch.
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Instructional Ideas
- Read more about the common male ancestor and the common female ancestor http://www.nature.com/news/genetic-adam-and-eve-did-not-live-too-far-apart-in-time-1.13478?WT.mc_id=FBK_NatureNews
- List other examples of human sexual dimorphisms
Classroom Considerations
- Remember to verify comments are appropriate before they are displayed for all in your class to view while showing the video
- This video is hosted on YouTube
Pros
- Includes closed captioning in Arabic, English, and German
- Provides sources for both the y-chromosome research and sexual dimorphism
Cons
- None