I'm certainly no expert, but from what I've seen the scientists are pretty firm in their belief it has nothing to do with obesity or other societal factors. Mo

I'm certainly no expert, but from what I've seen the scientists are pretty firm in their belief it has nothing to do with obesity or other societal factors. Most of those are fairly easy to control for. Apparently it's happening in dogs too: https://www.sciencedaily.com/releases/2016/08/160809095138.htm https://www.sciencedaily.com/releases/2016/08/160809095138.h... But not necessarily in farm animals. We know for a fact that phthalates have an effect on embryo development, and good luck avoiding those.