On the Science of Reproduction

This week seems to be a week of news on reproduction.

First, smart guys have better sperm. So their may be an evolutionary reason behind the growth in our intelligence as a species. (Though nowadays, I suspect that other factors are pushing things in the opposite direction.)

Second, there's the bit about how gents who smell good to you are probably a good match for having kids, but more than that: your preference it what smells good can be affected by taking birth control. Overall, the whole idea of my nose being that involved in my dating choices is just a hugely bizarre concept, but one I have to get behind on some level. Those guys who smell funky never have a shot.