Our internal circadian clock regulates daily life processes and is synchronized by external cues, the so-called Zeitgebers. The main cue is the light-dark cycle, whose strength is largely reduced in extreme habitats such ...
Plants & Animals
Jun 19, 2013
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Lack of accurate information and changing habitats are just two of the challenges facing European researchers in their efforts to improve the environmental management of Mediterranean streams.
Ecology
Jun 7, 2013
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(Phys.org) —A new study by scientists in the U.S. and Taiwan has shown that birds have colorful and patterned feathers because of specific cellular interactions involving stem cells rather than through the direct involvement ...
(Phys.org)—Sea-surface height data from NASA's Jason-2 satellite show that the equatorial Pacific Ocean is still locked in what some call a neutral, or 'La Nada' state. This condition follows two years of strong, cool-water ...
Earth Sciences
Feb 7, 2013
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(Phys.org)—The Galapagos giant tortoise, one of the most fascinating species of the Galapagos archipelago, treks slowly and untiringly across the volcanic slopes. Scientists of the Max Planck Institute for Ornithology in ...
Ecology
Nov 27, 2012
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Satellite measurement of sea surface temperatures has yielded clear evidence of major changes taking place in the waters of Australia's Great Barrier Reef over the past 25 years, marine scientists have found.
Environment
Sep 24, 2012
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This year scientists working on NASA's Operation IceBridge, a multi-year airborne science mission to study changing ice conditions at both poles, debuted a new data product with the potential to improve Arctic sea ice forecasts.
Earth Sciences
Aug 28, 2012
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At 130 million years old, the rainforests of Southeast Asia are the oldest in the world and home to thousands of plant and animal species, some endemic to these forests. The rainforests also play important roles in modulating ...
Earth Sciences
Jul 16, 2012
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Elephant movement in response to changes in rainfall patterns can be used to determine biologically relevant boundaries between seasons, as opposed to commonly used arbitrary definitions of seasons. The full report is published ...
Ecology
Jun 27, 2012
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Mate competition by males over females is common in many animal species. During mating season male testosterone levels rise, resulting in an increase in aggressive behavior and masculine features. Male bonobos, however, invest ...
Plants & Animals
Jan 23, 2012
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