Why are sperm so small? Or, how did anisogamy evolve?

Anisogamous gametes – a very large egg and a very small sperm

The third in a series from the blog Gender and Sexuality in Nature, a 2016 UC Davis course organized by UM EEB alumnus Ash Zemenick (UM EEB B.S. 2011, Ph.D. UC Davis 2017) and Jacob Moore (B.S. University of Washington 2009, Ph.D. UC Davis 2017). During the first week of this course, I jumped at…