January 25, 2006

Is Bigger Better ?

We look to studies on mice to see how what is learned will effect humans. Now we have a very interesting study on bats.

For some male bats, sexual prowess comes with a price -- smaller brains.

A research team led by Syracuse University biologist Scott Pitnick found that in bat species where the females are promiscuous, the males boasting the largest testicles also had the smallest brains. Conversely, where the females were faithful, the males had smaller testes and larger brains.

Posted by Jill Fallon at January 25, 2006 3:14 PM | Permalink