Sperm

Sperm

Jul 16, 2015

07/17/2015 - Sperm carry half the genes needed for human life.  In this hour, we'll share some basic questions and profound thoughts about reproduction.

http://www.radiolab.org/story/91646-sperm/

Sperm

Feb 9, 2014

2/15/2014 - Matthew Cobb takes us back to 1677, when Anton Van Leewenhoek first identified sperm and there was much talk of souls and miniature men residing in the seminal fluid. Upon observation it became clear that there were an awful lot of those little guys that never turned into babies! Jad wonders: why so many sperm?