Adolescent male chimps in large community strive to be alphas

ScienceDaily (Sep. 19, 2012) — An Ohio University anthropologist reports the first observation of dominance relationships among adolescent male chimpanzees, which he attributes to the composition of their community. Hogan Sherrow spent eight years studying...

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Invisible plastic particles in seawater damaging to sea animals

ScienceDaily (Sep. 20, 2012) — Plastic nanoparticles in seawater can have an adverse effect on sea organisms. Particles measuring about a thirty millionth of a millimetre, and therefore invisible to the naked eye, are responsible. Mussels that have been...

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Humans were already recycling 13,000 years ago, burnt artifacts show

ScienceDaily (Sep. 20, 2012) — A study at the Universitat Rovira i Virgili and the Catalan Institute of Human Paleoecology and Social Evolution (IPHES) reveals that humans from the Upper Palaeolithic Age recycled their stone artefacts to be put to other...

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Invasive 'Rasberry Crazy Ant' in Texas now identified species

ScienceDaily (Sep. 19, 2012) — The Rasberry Crazy Ant is an invasive ant that was first noticed infesting areas around Houston, Texas ten years ago, but its species identity has remained undetermined until now. In a paper published Sept. 19 in the...

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New way proposed to save Africa's beleaguered soils

ScienceDaily (Sep. 19, 2012) — A Washington State University researcher and colleagues make a case in the journal Nature for a new type of agriculture that could restore the beleaguered soils of Africa and help the continent feed itself in the coming...

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Oyster genome uncover the stress adaptation and complexity of shell formation

ScienceDaily (Sep. 19, 2012) — An international research team, led by Institute of Oceanology of Chinese Academy of Sciences and BGI, has completed the sequencing, assembly and analysis of Pacific oyster (Crassostrea gigas) genome -- the first mollusk...

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Climate change to fuel northern spread of avian malaria: Malaria already found in birds in Alaska

ScienceDaily (Sep. 19, 2012) — Malaria has been found in birds in parts of Alaska, and global climate change will drive it even farther north, according to a new study published September 19 in the journal PLoS ONE. The spread could prove devastating...

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Genetic mutation may have allowed early humans to migrate throughout Africa

ScienceDaily (Sep. 19, 2012) — A genetic mutation that occurred thousands of years ago might be the answer to how early humans were able to move from central Africa and across the continent in what has been called "the great expansion," according to...

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Climate scientists put predictions to the test

ScienceDaily (Sep. 19, 2012) — Climate-prediction models show skills in forecasting climate trends over time spans of greater than 30 years and at the geographical scale of continents, but they deteriorate when applied to shorter time frames and smaller...

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Ancient tooth may provide evidence of early human dentistry

ScienceDaily (Sep. 19, 2012) — Researchers may have uncovered new evidence of ancient dentistry in the form of a 6,500-year-old human jaw bone with a tooth showing traces of beeswax filling, as reported Sept. 19 in the open access journal PLOS ONE. ...

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Arctic sea ice hits smallest extent in satellite era

ScienceDaily (Sep. 19, 2012) — The frozen cap of the Arctic Ocean appears to have reached its annual summertime minimum extent and broken a new record low on Sept. 16, the National Snow and Ice Data Center (NSIDC) has reported. Analysis of satellite...

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Odorant shape and vibration likely lead to olfaction satisfaction

ScienceDaily (Sep. 19, 2012) — A new study of the sense of smell lends support to a controversial theory of olfaction: Our noses can distinguish both the shape and the vibrational characteristics of odorant molecules. The study, in the journal Physical...

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Carbon dioxide from water pollution, as well as air pollution, may adversely impact oceans

ScienceDaily (Sep. 19, 2012) — Carbon dioxide (CO2) released into the oceans as a result of water pollution by nutrients -- a major source of this greenhouse gas that gets little public attention -- is enhancing the unwanted changes in ocean acidity...

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Thermoelectric material is the best at converting heat waste to electricity

ScienceDaily (Sep. 19, 2012) — Northwestern University scientists have developed a thermoelectric material that is the best in the world at converting waste heat to electricity. This is very good news once you realize nearly two-thirds of energy input...

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The 'slippery slope to slime': Overgrown algae causing coral reef declines

ScienceDaily (Sep. 19, 2012) — Researchers at Oregon State University for the first time have confirmed some of the mechanisms by which overfishing and nitrate pollution can help destroy coral reefs -- it appears they allow an overgrowth of algae that...

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How organisms evolve new functions: Evolution is as complicated as 1-2-3

ScienceDaily (Sep. 19, 2012) — A team of researchers at Michigan State University has documented the step-by-step process in which organisms evolve new functions. The results, published in the current issue of Nature, are revealed through an in-depth,...

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CT scan and 3-D print help scientists reconstruct an ancient mollusk

ScienceDaily (Sep. 19, 2012) — Using a combination of traditional and innovative model-building techniques, scientists in the U.S. and a specialist in Denmark have created a lifelike reconstruction of an ancient mollusk, offering a vivid portrait of...

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Self-forming biological scaffolding

ScienceDaily (Sep. 19, 2012) — A new model system of the cellular skeletons of living cells is akin to a mini-laboratory designed to explore how the cells' functional structures assemble. A paper about to be published in EPJ E by physicist Volker Schaller...

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Major changes needed to protect Australia's species and ecosystems

ScienceDaily (Sep. 18, 2012) — A landmark study has found that climate change is likely to have a major impact on Australia's plants, animals and ecosystems that will present significant challenges to the conservation of Australia's biodiversity. ...

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