You have allergies because your ancestors had sex with Neanderthals

You have allergies because your ancestors had sex with Neanderthals

Studies say modern day allergies come from interbreeding with Neanderthals thousands of years ago. Gillian Pensavalle (@GillianWithaG) explains.


User: Buzz60

Views: 92

Uploaded: 2016-01-12

Duration: 01:06

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