Watch out fellow males, you too could be recruited for a dastardly experiment.
A fish researcher has created egg-laying male bluegills by giving the boys estrogen. Then he uses normal males to fertilize the male-produced eggs. The offspring? So-called "super males" that have two y chromosomes and can be counted on to mate with normal females to produce only male offspring.
Why? Because fish farmers prefer to raise male bluegills--they're twice as big as females and thus more profitable.