01-27-2006, 12:27 PM
An article about bats. 
full article: http://www.theregister.co.uk/2006/01/26/bat_revelation/
A longer article: http://edition.cnn.com/2006/TECH/science...brains.ap/
Quote:A Syracuse University research team has discovered something quite remarkable, if not immediately useful in everyday life*: bats belonging to species where the females are promiscuous have bigger testicles than those in species where the girls are more family-oriented.
There is, however, a price to pay: the bigger your 'nads, the smaller your brains, according to team leading biologist Scott Pitnick, who quipped: "It turns out size does matter."
Pitnick's research, which according to AP features in last December's Proceedings of the Royal Society: Biological Science, concludes that males in some species "make an evolutionary trade-off between intelligence and sexual prowess"
full article: http://www.theregister.co.uk/2006/01/26/bat_revelation/
Quote:The study found that in more monogamous species, the average male brain size was about 2.6 percent of body weight, while in promiscuous species, the average size dipped to 1.9 percent.
A longer article: http://edition.cnn.com/2006/TECH/science...brains.ap/
