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19 December 2013 12:36 pm ,
Vol. 342 ,
After 20 years of trying, researchers have finally convicted massive volcanic eruptions in Siberia as the culprit in...
Five federally funded optical and radio telescopes in the United States could be forced to shut down over the next 3...
A 2-year budget agreement pushes back the threat of sequestration but leaves scientists still wondering how much money...
After a decade away from physics, Robert Laughlin, a Nobel laureate at Stanford University in Palo Alto, California,...
Computer scientists and others have teamed up to persuade the 117 state parties to the Convention on Certain...
The swine flu pandemic of late 2009 had a peculiar aftereffect in parts of Europe: a spike in children being diagnosed...
- 19 December 2013 12:36 pm , Vol. 342 , #6165
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ScienceShot: Bumblebees Have the Fastest Color Vision Around
19 March 2010 4:18 pm
How does a bumblebee (Bombus terrestris dalmatinus), zooming among the frothy blooms of a cherry tree, manage to zip so quickly from one flower to the next? They see five times faster than humans, which gives them the fastest color vision of all animals, according to a new study in the 17 March issue of The Journal of Neuroscience. The speed with which an animal sees depends on how quickly the light-detecting cells in its eye can capture snapshots of the world and send them to their brain, the authors report. And, according to data recorded from electrodes implanted in the retinal cells of cold-anaesthetized bumblebees, bees do this much faster than anyone else. The bees' speedy vision enables them to quickly navigate in dappled light, to recognize shapes, such as the entrance to their hive, and particularly to find nectar-bearing, colored flowers.