Cannibalistic spiders may just be choosy guys

Micaria sociabilis may choose to have older female for lunch, not sex

By Susan Milius, 14:18 PM May 13, 2013

Male spiders that treat some females as meals instead of mates may be expressing their preference for younger partners.

“Normally male spiders are viewed as active, let’s say, nondiscriminatory machines that are trying to copulate with every female they encounter,” says Lenka Sentensk√° of Masaryk University in Brno, Czech Republic. But that’s not the case for the small spider Micaria sociabilis, she and colleague Stanislav Pek√°r report in an upcoming Behavioral Ecology and Sociobiology. “We ...

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