This question is a follow-up to this one. I've been wondering how small that probability is. As we all know, "safe" sex, that is (correctly) using a condom and all that, isn't perfectly safe. So, in ...
I read somewhere that claimed females initiate flight defends more than males, who tend to initiate fight more, that is it is claimed males will attack more than females when frightened. I believe ...
I remember hearing a saying that goes like "men think of sex every 7 minutes (or seconds?)". I take this saying to mean that men have sex related thoughts more often than women. I'm interested if ...
The wikipedia article on human height reports mean height for many different countries by sex but it does not report standard deviations. What is the standard deviation of adult human heights within ...
How to know if a human female is fertile (can give birth to child in future) without making her pregnant? Any signs, tests?