Biology of Dads

[JensBump]

Very interesting set of videos on youtube about the biology of dads and how the hormones effect them too - I will warn you that the 4th and final part is missing but the first 3 videos are really worth watching:

http://www.youtube.com/watch?v=jZ0RJaezYwk

http://www.youtube.com/watch?v=6FU32J8dM3o&feature=related

http://www.youtube.com/watch?v=JvzlBmbToko&feature=related