Just as with everything else, in order to be competitive athletes have evolved since the first Olympian competition. Take a look at what have been the changes in this very interesting asapSCIENCE video.
Channels: Genetics Interesting Science Others History Fun and Smart
Tags: body change evolution Olympian Olympic games
Uploaded by: guptava ( Send Message ) on 01-10-2014.
Duration: 2m 27s