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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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ScienceShot: 100-Million-Year-Old Spider Attack Caught in Amber
12 October 2012 11:45 am
This one really was a fight for the ages. Researchers have discovered the only fossil known of a spider attack on prey caught in its web. The young male arachnid (top) was just about to pounce on a tiny parasitic wasp when the pair became smothered in tree resin in the Hukawng Valley of Myanmar 97 million to 110 million years ago. The result was a fossilized piece of amber that captured the event—complete with spider silk—in remarkable detail. The amber, described in the current issue of Historical Biology, also ensnared an adult male spider in the same web. Few arachnid species today are known to share a web, suggesting this is the oldest fossil evidence of social behavior in spiders.
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