Remora fish, with a sucking disc on top of their heads, have been the stuff of legend. They often attach themselves to the hulls of boats and in ancient times were thought to purposely slow the boat down. While that is a ...
Plants & Animals
Jun 6, 2013
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(Phys.org) —For decades, ecologists have assumed the worst invasive species—such as brown tree snakes and kudzu—have an "away-field advantage." They succeed because they do better in their new territories than they ...
Ecology
May 20, 2013
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The impact of industrial fishing on coastal ecosystems has been studied for many years. But how it affects food webs in the open ocean―a vast region that covers almost half of the Earth's surface―has not been very clear. ...
Ecology
May 13, 2013
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Scientists from the Smithsonian and the University of Rhode Island have found unsuspected linkages between the oxidation state of iron in volcanic rocks and variations in the chemistry of the deep Earth. Not only do the trends ...
Earth Sciences
May 2, 2013
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It can take years of direct observation for a researcher to fully understand the diets of a community of herbivorous insects in a tropical rain forest. Now, five Smithsonian scientists are paving a fast track using the DNA ...
Plants & Animals
Mar 25, 2013
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(Phys.org) —New maps of the subsurface of Mars show for the first time buried channels below the surface of the red planet. Mars is considered to have been cold and dry over the past 2.5 billion years, but these channels ...
Space Exploration
Mar 7, 2013
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(Phys.org)—As rapid economic expansion continues to shape the Asian landscape on which many species depend, time is running out for conservationists aiming to save wildlife such as tigers and leopards. Scientists at the ...
Ecology
Jan 16, 2013
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Human–elephant conflict in Sri Lanka kills more than 70 humans and 200 Asian elephants every year. One of the most common tools in combating these conflicts is moving the elephants into ranges away from humans, often into ...
Ecology
Dec 12, 2012
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(Phys.org)—No Thanksgiving dinner is complete without a succulent roasted turkey. The U.S. Department of Agriculture estimates that consumers cook and eat more than 45 million turkeys every Thanksgiving. Very few Americans, ...
Plants & Animals
Nov 20, 2012
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A blazar is a galaxy with an intensely bright central nucleus containing a supermassive black hole, much like a quasar. The difference is that a blazar can emit light with extremely high energy gamma rays that are sometimes ...
Astronomy
Oct 29, 2012
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