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Next time you see a dragonfly, try to watch it catch its next meal on the go. Good luck! "Unless we film it in high speed, we can't see whether it caught the prey, but when it gets back to its perch, if we see it chewing, we know that it was successful, " says Stacey Combes, a biomechanist at Harvard University. With support from the National Science Foundation (NSF), she and her team are studying...

Rising carbon dioxide (CO2) levels can reverse the drying effects of predicted higher temperatures on semi-arid rangelands, as per a research studypublished recently in the scientific journal Nature by a team of U.S. Department of Agriculture (USDA) and university scientists. Warmer temperatures increase water loss to the atmosphere, leading to drier soils. In contrast, higher CO2 levels cause lea...

Red may mean STOP or I LOVE YOU! A red splash on a toxic butterfly's wing screams DON'T EAT ME! In nature, one toxic butterfly species may mimic the wing pattern of another toxic species in the area. By using the same signal, they send a stronger message: DON'T EAT US! . Now several research teams that include Smithsonian researchers in Panama, have discovered that Heliconius butterflies mimic eac...