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6 March 2014 1:04 pm ,
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Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
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ScienceShot: A Shield Made of Eggs
14 September 2011 4:39 pm
Beetles and Lego castle builders both know that stacking is the key to a strong fortress. The seed beetle (Mimosestes amicus) plops its shiny eggs one on top of the other to protect the bottommost eggs from parasitic wasps, which drill inside to the yolk and lay their own offspring. The strategy works: lab studies show that shielded eggs get cannibalized much less often, researchers report online this week in the Proceedings of the Royal Society B. Wasps, instead, tend to go for the top-most eggs. And they're welcome to them: As far as the beetles are concerned, these outer shield eggs are duds, good only, perhaps, for protection. In fact, the beetles pump so few nutrients into these outer eggs that many of the wasps infesting them wind up starving. Try building a Lego castle that can do that.
See more ScienceShots.