Cities are generally regarded as hostile for wildlife and urbanization a dramatic form of destruction of natural habitats. Still, they are far from dead zones. Their biodiversity may even exceed that of surrounding landscapes, ...
Ecology
Oct 7, 2011
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Researchers at Stanford's Jasper Ridge Biological Preserve often encounter signs of mountain lion activity, from lion scat to the occasional deer carcass covered with leaves. But few have actually caught a glimpse of the ...
Plants & Animals
Oct 7, 2011
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(PhysOrg.com) -- A remarkable discovery was made by astronomers on 12 December 2010: an asteroid named Scheila had changed its appearance and looked more like a comet, complete with bright tail. An international team of scientists ...
Space Exploration
Oct 7, 2011
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In a remarkable discovery, images taken over the past five years by the High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA’s Mars Reconnaissance Orbiter, which circles Mars to photograph the planet, ...
Space Exploration
Oct 7, 2011
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Biological invasions, i.e. the spread of introduced, non-native species, not only serve as ecological model systems, but also bring out the importance of economic activities on ecological processes. Two recent books have ...
Ecology
Oct 7, 2011
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(PhysOrg.com) -- For decades, ecologists have toiled to nail down general principles explaining why some habitats have so many more plant and animal species than others. Much of this debate is focused on the idea that the ...
Ecology
Oct 7, 2011
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(PhysOrg.com) -- Analysis of fragments of the Almahata Sitta meteorite, which landed in Sudan in 2008, has shown that the parent asteroid was probably formed through collisions of three different types of asteroids. ...
Space Exploration
Oct 7, 2011
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(PhysOrg.com) -- Uranus’s highly tilted axis makes it something of an oddball in our Solar System. The accepted wisdom is that Uranus was knocked on its side by a single large impact, but new research to be presented ...
Astronomy
Oct 7, 2011
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Building electronic devices that work without needing to actually transport electrons is a goal of spintronics researchers, since this could lead to: reduced power consumption, lower levels of signal noise, faster operation, ...
Quantum Physics
Oct 7, 2011
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The Earth currently has more than 400 so-called "dead zones"--huge expanses of deep ocean that, because of human activities, become too oxygen-starved during the summer to support most life.
Environment
Oct 7, 2011
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