As far as evolution is concerned, genital size doesn't matter — but shape does. Genitalia are important in the evolution of new species, since compatible parts are necessary for two individuals to ...

• Only sexual organs show clear separation: In all other organs, male and female gene activity patterns overlap. • Human differences are weaker: Compared to mice, the differences are smaller and ...

In A Nutshell Researchers have launched a free, publicly accessible 3D atlas of real human organs that lets anyone zoom from whole-organ views down to near-cellular detail in a web browser. The scans ...