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Alien-Wasp Swarms Devouring Birds Saturday, July 25, 2009 - Anuradha Menon Home >> Headlines >> General Science   
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Attacking from nests as big as pickup-truck beds, invasive western yellowjacket wasps in Hawaii are munching their way through an "astonishing diversity" of creatures, from caterpillars to pheasants, a new study says. Adult yellowjackets consume only nectar. But they kill or scavenge prey to deliver needed protein to their growing broods. In their native habitat in the western U.S., the wasps die off in winter. But in Hawaii the wasps survive the winter. (source: news.nationalgeographic.com)
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