The Cell Picture Show has collected 10 images of sexually significant science from labs around the world: the resulting slideshow (summarised in their image above) takes you on a walk through sex systems across many types of living things.
I'm having a hard time deciding on a personal favourite. Colorfully stained cells inside a mouse testis? Or the head-on view of Onthophagus rangifer's sexy, sexy, horns?
Click through to the Cell Picture Show to see the full-sized versions (and one bonus video).
Picture: Cell Picture Show