Draw your own conclusions, if you can

Here's an interesting entry from the Houston Chronicle's science blog. Scientists studying bats have discovered that in the males, there's a trade-off between the size of the animal's brain and the size of its testicles. Apparently they can't be big in both places, so they can either support a greater intellect or produce lots of sperm, but not both. The blogger also makes an amusing hypothesis about the relative intelligence of the members of AC/DC.