It’s official, males with big testicles have smaller brains - at least in the case of bats, according to  a discovery by scientists at Syracuse University in New York.

Read More:  http://www.sky.com/skynews/article/0,,91059-13475802,00.html

Their study shows a biological trade-off between brains and sperm, with the creatures ‘opting’ for one or the other.

See.  They didn’t have to do a study on that.  I would have thought it’s fairly obvious.

I wonder how they study the IQ of a bat?  Are bats with smaller testicles but bigger brains more or less secure in their identity?  Do bats get spam email telling them that they could, for a very low price and from the comfort of their own caves, remedy one or both of those problems?

I do wonder!