Slave-making ants get rough in New York
By Susan Milius
The slavery racket in the ant world is more violent in New York than in West Virginia, even though the same species are involved.
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That’s the conclusion of the first laboratory analyses of how slavers and their slaves might be driving each other’s evolution, explains Susanne Foitzik of the University of Regensburg in Germany. In the June 7 Proceedings of the Royal Society of London B, she and her colleagues report finding more built-in defensiveness in the enslaved species where slavers strike more fiercely.