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Stowaway Penguins Hop Hemispheres
May 31, 2007
Stowaway Penguins Hop Hemispheres
A Humboldt penguin known only from the Southern Hemisphere but recently found thousands of miles from home likely was a stowaway on a fishing ship, say scientists. The seemingly peripatetic penguin turned up in July 2002 when fisherman Guy Demmert netted an atypical batch of salmon off the coast of...
Study Reveals Real Reason Birds Migrate
Feb 28, 2007
Study Reveals Real Reason Birds Migrate
It's food scarcity, not dietary preferences, that motivates birds to migrate thousands of miles back and forth between breeding and non-breeding areas each year, new research shows. It's not whether you eat insects, fruit, nectar or candy bars or where you eat them--it matters how reliable that food source is...
Bird Eavesdrops on Another Bird's Alarm Calls
Feb 28, 2007
Bird Eavesdrops on Another Bird's Alarm Calls
WASHINGTON (AP) -- Nuthatches appear to have learned to understand a foreign language -- chickadee. It's not unusual for one animal to react to the alarm call of another, but nuthatches seem to go beyond that -- interpreting the type of alarm and what sort of predator poses a threat....
Bats Found to Feed On Migrating Birds at Night
Jan 31, 2007
Bats Found to Feed On Migrating Birds at Night
The blood of the largest bat in Europe reveals it can devour birds in midair at night, the only animal known to do so thus far, evidence now strongly suggests. Roughly five billion songbirds migrate across the Mediterranean Sea every year, mainly at night. Although more than 90 percent of...
You Can Help: Great Backyard Bird Count
Jan 31, 2007
You Can Help: Great Backyard Bird Count
People from all walks of life will don binoculars, if they can find them, and trek outside this weekend to count birds ranging from finches to juncos for 15 minutes as part of the Great Backyard Bird Count. In its 10th year, the project relies on participants to create a...
Superfast Muscles Power Songbird Singing
Jun 30, 2008
Superfast Muscles Power Songbird Singing
Some songbirds can contract their vocal muscles with the fastest muscle movements yet described — about 100 times faster than humans can blink an eye, according to new research. The study found that two types of songbirds produce their tunes with superfast muscles, similar to those used by rattlesnakes, several...
Birds Kill Siblings, Hormones Blamed
May 31, 2008
Birds Kill Siblings, Hormones Blamed
If you ever felt at least metaphorically like you wanted to kill your brother or sister, your sibling is lucky you're not a booby. A Nazca booby, a Galápagos Island seabird, is eager and able to kill a sibling in the nest. A new study links the murderous behavior to...
Birds Babble Like Babies
Apr 30, 2008
Birds Babble Like Babies
Baby birds are like baby humans on at least one score: they both babble. But as songbirds grow up, they make the switch from babbling to singing by flipping to a different brain circuit, new research finds, suggesting a new view of human infant behavior. We should toss out the...
Birds Favor Most Promising Offspring
Nov 30, 2009
Birds Favor Most Promising Offspring
Parasites can lessen a young bird’s chance of survival. If parents can detect signs of infection early, they may cut their losses by reducing their efforts to feed and care for parasitized broods—thus saving energy for healthy offspring or future breeding attempts. A new study suggests that such parental vetting...
Aussie Birds Shrinking, Heading Poleward
Oct 31, 2009
Aussie Birds Shrinking, Heading Poleward
Australia’s average surface temperature has risen more than 1 Fahrenheit degree since 1900. During roughly the same period, the body size of Australian passerine (perching) birds has declined by as much as 3.6 percent. Zoologist Janet L. Gardner of the Australian National University in Canberra and colleagues, who detected the...
'First Bird' Not Very Bird-Like
Sep 30, 2009
'First Bird' Not Very Bird-Like
A feathered beast that lived some 150 million years ago and which is considered the first bird likely grew more like its sluggish ancestors, the dinosaurs. That's according to new analyses of tiny bone chips taken from Archaeopteryx and detailed this week in the journal PLoS ONE. The study researchers...
Charge: T. Rex Was a Chicken and a Baby Killer
Jul 31, 2009
Charge: T. Rex Was a Chicken and a Baby Killer
Although past research has suggested Tyrannosaurus rex was related to chickens, now findings hint this giant predator might have acted chicken too. Instead of picking on dinosaurs its own size, researchers now suggest T. rex was a baby killer that liked to swallow defenseless prey whole. Fossil evidence of attacks...
Prehistoric 'Runway' Used by Flying Reptile
Jul 31, 2009
Prehistoric 'Runway' Used by Flying Reptile
A prehistoric runway for flying pterosaurs has been discovered for the first time. Scientists uncovered the first known landing tracks of one of these extinct flying reptiles at a site dubbed Pterosaur Beach, in the fine-grained limestone deposits of an ancient lagoon in southwestern France dating back some 140 million...
Toucan's Bill Acts as Giant Radiator
Jun 30, 2009
Toucan's Bill Acts as Giant Radiator
Some animals sweat to cool off. Toucans can't. Instead, they use their enormous orange bills as radiators to dump heat and stay chilled. The toco toucan (Ramphastos toco), which hangs out in the canopies of tropical rainforests in South America, sports the largest bill relative to body size of any...
Newfound Bird Is Bald
Jun 30, 2009
Newfound Bird Is Bald
Scientists have discovered a rare new bird species with a bald head. The creature, dubbed the bare-faced bulbul, was found in Laos, and is the only known bald songbird in mainland Asia. It's also the first time in over 100 years that a new Asian species of bulbul bird has...
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