When you're at the bar on Friday night, what about that guy or girl across the room sparks your attention, and why? Michio Kaku talks about why humans find certain traits attractive in potential mates.
Channels: Biochemistry Interviews Globalization
Tags: Big Think Michio Kaku sex evolution
Uploaded by: layne.ransom.5 ( Send Message ) on 08-12-2012.
Duration: 2m 1s