date:May 12, 2012
An unpublished study written by two scientists at the Massachusetts Institute of Technology (MIT) found that mice fed probiotic yogurt were shinier than other mice with thicker fur, while males projected their testes outwards and exuded a certain mouse swagger.
Testicles were on average 5% heavier than those in mice fed typical diets alone, and 15% heavier than those of males fed the junk food diet.
Faster insemination
Mating experiments also showed that males inseminated partners faster and