Figuring Out Birds' Migrations, Motivations
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By Shankar Vedantam, Washington Post Staff Writer  Every spring, thousands of birds, some weighing a pound or less, set off on a journey of herculean proportions. They fly thousands of miles north, to breeding grounds in Saskatchewan and Alberta in Canada and to U.S.
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A new study suggests that even if backyard feeding stops at winterâs end, it has a carry-over effect on birds later in the spring.
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Archaeopteryx, the earliest known bird, used both its feathered forelimbs and hind limbs to glide from trees, according to a new analysis of fossils found in the 1800s.
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Is it a bird? A plane? A planet-levelling asteroid?
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The ancient family tree where all the world&#39;s birds perch is getting bigger, odder and older, scientists announced Wednesday. In a report in Thursday&#39;s issue of the journal Nature, paleontologists
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[World News]: Washington, Nov 27 : Scientist have always wondered how pigeons manage to be such good navigators and have a &#39;nose for the north&#39; and now a new study has suggested that it is because they have small magnetic particles in their beaks, which
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The decline of migratory birds due to an accelerating Arctic thaw may also disrupt the delicate ecosystems of their far-flung winter homes from Africa to South America, experts said on Wednesday.
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While leaves tumble from trees this fall, another natural wonder is soaring overhead. Hawks in North and South America are taking to the air as part of a seasonal migration.
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By Goldberg, Cait  THE AUDUBON SOCIETY GUIDE TO ATTRACTING BIRDS: Creating Natural Habitats for Properties Large and Small  STEPHEN W.
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TWITCHERS should book their plane tickets as soon as possible. Wildlife experts yesterday claimed to have discovered a new species of bird in the Philippines. But they immediately warned that the flightless Calayan rail could be driven to extinction by ...
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Science & environment: Â· Scientists shed new light on disputed skeleton findÂ· Bone analysis supports distinct species theory
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Evolutionary biologists have long theorized that the pace of evolution quickens when a species faces great environmental stress. This idea, of course, is a tough one to âprove,â but we can see examples of it all around us. Just look at the IT security industry, where something akin to drastic environmental change is happening right now: Organized cybercrime groups are punching truck-size holes in enterprise security defenses as regulators, shareholders, and attorneys general are putting pressure on companies to lock down sensitive data. The pressure for change will make this weekâs RSA Security Conference in San Francisco less an industry shindig than a live experiment in evolutionary biology. So walk quietly and keep your field glasses handy to spot some exotic new species in these areas:
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Biologists have fought long and sometimes bitterly about how birds evolved -- but a new study published on Thursday suggests that their intellectual battle may have been all in vain.
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BERLIN, May 21 (IPS) - New scientific evidence confirms that human action,  such as carbon emissions causing global  warming, and  industrial-scale search for food, is decimating biodiversity -  and, in some  cases, is driving threatened species to evolve and  adapt at unexpected speed to new living  conditions.
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The next century definitely will not be for the birds as the changing world takes a toll on many species. By 2100, about 10 percent of all bird species probably will be extinct, killed off by habitat loss, hunting
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A leatherback turtle has chalked up a new migration record after covering more than 12,000 miles
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By WHITNEY GOULD  A breeze rustles through basswoods and willows. Warblers and finches twitter; a woodpecker taps away. Beyond a fringe of tall grasses, a fish ripples the water.