A little something for the ladies

Okay ladies, you've always thought that guys were a little oxygen deprived. Here's the first step towards proof:

Dead zones — oxygen-starved patches of ocean — may be turning normal breeding grounds into the equivalent of male-dominated locker rooms for fish.

In lab experiments, newly born male zebrafish outnumber females 3-to-1 when oxygen is reduced. And the precious few females have testosterone levels about twice as high as normal, according to a scientific study released Wednesday.