Extreme Weather Impacts Migratory Birds

(PhysOrg.com) -- Every year, hurricanes and droughts wreak havoc on human lives and property around the world. And according to a pair of new NASA-funded studies, migratory birds also experience severe impacts to their habitats ...

Vital role for bacteria in climate-change gas cycle

Isoprene is a Jekyll-and-Hyde gas that is capable of both warming and cooling the Earth depending on the prevailing conditions. It is an important industrial gas, necessary for the manufacture of important compounds such ...

Google CEO's compensation for 2009 falls 52 pct

(AP) -- The total compensation of Google Inc. CEO Eric Schmidt fell 52 percent last year as the Internet search leader cut back on its employee perquisites to help lift its profits during the recession.

Researchers develop fast methods for making 3D city models

There is a growing demand for three-dimensional city models, but creating these models is expensive and labour-intensive. Shi Pu and Sander Oude Elberink of the University of Twente, The Netherlands, have each developed a ...

Urine sprays during courtship send mixed messages

Walking through urine drives crayfish into an aggressive sexual frenzy. Researchers writing in the open access journal BMC Biology suggest that a urine-mediated combination of aggressive and reproductive behaviour ensures ...

Hyenas' laughter signals deciphered

Acoustic analysis of the 'giggle' sound made by spotted hyenas has revealed that the animals' laughter encodes information about age, dominance and identity. Researchers writing in the open access journal BMC Ecology recorded ...

Bacterial 'food supplements' for small algae

To boost their diet of mineral nutrients and sunlight, small algae also feast on bacteria in order to grow and fix carbon dioxide (CO2). Understanding more about the lifestyle of small algae - which are major players in CO2 ...

An Avalanche of Asteroids

Imagine you're a Brontosaurus with your face in a prehistoric tree top, munching on fresh leaves. Your relatives have ruled planet Earth for more than 150 million years. Huge and strong, you feel invincible.

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