Friday, December 09, 2005

Of Bats' Balls and Brains

Brian
Bats, like people, are caught in the eternal struggle between maximizing the capacity of their brains and maximizing that of their testicles:
For male bats, intelligence comes at a steep price. A new study found that bat species with large brains have smaller testicles.

. . . .

"The male who ejaculates the greatest number of sperm may win at this game, and hence many bats have evolved outrageously big testes," [biologist Scott] Pitnick said. "Because they live on an energetic knife-edge, bats may not be able to evolutionarily afford both big testes and big brains."
Link. You may or may not want to click here to get a look at what we're talking about. Don't say I didn't warn you. I'm sure as bat testicles not going to print that image on the front page.

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