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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: Don't Go Into the Light
20 June 2012 4:16 pm
The Chilean wineberry has to make a tough choice: soak up the sun and chance being eaten, or shun the light and risk starving to death. The quick-growing plant (Aristotelia chilensis) lives in a warm, rainy environment where it needs to make big leaves to catch the sun's rays, but also where slugs, weevils, and other herbivores are just waiting to eat its leaves up. To figure out how the wineberry deals with this conflict, researchers grew its seedlings under conditions where there was either an abundance of sunlight or lots of shade, and also in the presence or absence of herbivores. Without predators present, the plants grew to have the same size and amount of leaves. However, when slugs and weevils were around, shaded seedlings produced much smaller leaves. In essence, the team reports online this month in The American Naturalist, the Chilean wineberry has found a compromise: Grow your leaves big enough so that they can catch light, but not so big that they become the perfect meal.
See more ScienceShots.