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6 March 2014 1:04 pm ,
Vol. 343 ,
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...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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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.