This Just In: Pregnant Women Don't Tip Over!

We'd never know, but this article reports it is so. More seriously, the source is in the Dec 13 issue of Nature, and it's all about spine curvature. Well well...

Anecdotally, most men find something attractive about a pronounced curvature of a woman's lower back, just above the buttocks. If I understood this article correctly, that's another evolutionary marker of an efficient "baby-making machine". Other such markers I've heard of before are full lips and a high hips/waist ratio; all of them are correlated with fecundity, as well as universally considered attractive.

We men may be pigs, but it is in the noble function of propagating the species. Our tastes evolved. Guys, when women tell you to evolve, you should retort, "I already have. This is the final product." (So far, of course, but the same is true of women.)