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6 March 2014 1:04 pm ,
Vol. 343 ,
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
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...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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Video: The Smooth Moves of the Male Orb-Web Spider
28 January 2013 1:20 pm
A good first impression can save your life—that is, if you're a male orb-web spider. When a male Argiope keyserlingi finds a female, he carefully cuts out a small section of her web, builds a mating thread over the hole, and begins a complex courtship ritual. With his first courting technique, the shudder, he tries to entice the much-larger female onto his thread by quickly rocking back and forth. If successful, he follows up with abdominal wags and the "mating thread dance," consisting of web plucks and bounces. While his performance on these last techniques ultimately determines whether the cannibalistic female decides to mate with him, his execution of the initial shudder influences whether she decides to have a postsex snack, researchers report this month in PLOS ONE. Apparently, females prefer—and are less likely to eat—males that shudder long and slow.
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