Quantcast

Latest Evolution of birds Stories

a3dbf6a16846230704e0619fdcc08a3f
2011-07-28 04:55:00

Archaeopteryx, once believed to be the world's earliest bird, may actually have been just another feathered dinosaur, according to a report published Wednesday in the journal Nature. Researchers in China, led by Xing Xu of Linyi University, carried out a phylogenetic analysis combining a newly discovered fossil with other similar dinosaurs and early birds, and concluded that the species should no longer be considered a fully developed bird. If confirmed, the controversial hypothesis would be...

3e707378ddc542ad35da03de01826e691
2010-01-28 14:45:00

Scientists' find describes how one family of dinosaurs came to look like birds--independent of birds Through an expedition to the Gobi Desert of China, scientists have solved the puzzle of how one group of dinosaurs came to look like birds--independent of birds. The discovery extends the fossil record of the family Alvarezsauridae--a bizarre group of bird-like dinosaurs with a large claw on the hand and very short, powerful arms--back 63 million years, further distancing the group from birds...

0b9e7d558de417f27a383dae7b82f5371
2009-06-17 13:50:00

Scientists have uncovered a beaked dinosaur in China that is providing new clues into how birds' hands evolved to develop fingers.Writing in the journal Nature, scientist James Clark of George Washington University and Xu Xing of the Chinese Academy of Science's Institute of Vertebrate Paleontology and Paleoanthropology in Beijing detailed the new discovery, which was found amidst 159-million-year-old deposits in the Junggar Basin of Xinjiang."This finding is truly exciting, as it changes...

54498b6c2ab3405064dc3785b1b43fc01
2008-10-23 08:25:00

The fossilized remains of a dinosaur about the size of a pigeon that may be the ancestor of birds has been discovered by archeologists in China. Scientists recovered 90 percent of the skeleton which was preserved in rock found in Ningcheng county in Inner Mongolia of northern China. The find was reported in an article in Nature. It has four limbs which lacked contour feathers that could be used for flight, making it a flightless creature. It probably live 176 to 146 million years ago in...

53c7d8a1ae78eef0b348130f98907f6d1
2008-09-30 13:36:38

Paleontologists have discovered the remains of a large meat-eating dinosaur with a breathing apparatus much like a modern bird, fortifying the link between birds and dinosaurs and helping to explain the evolution of birds' unique system of breathing. The scientists said the specimen, pulled from 85-million-year-old rock along the banks of Rio Colorado in Argentina's Mendoza Province, was a 33-foot-long (10 meter), two-legged predator that weighed as much as an elephant and likely had...

2008-09-11 18:01:43

Ostriches, emus, kiwis and other winged non-flyers might seem to be birds of a feather, sharing similar evolutionary origins, but the story could turn out to be much weirder, with perhaps numerous flying ancestors. This group of birds, called ratites, has been viewed by biologists as part of a larger group (paleognaths) of mostly extinct birds that are key to understanding the early evolution of birds. All living ratites are found in the Southern Hemisphere and share features associated...

dccb798fccbcc0562463ca901786dd52
2008-09-04 11:38:18

Large flightless birds of the southern continents "“ African ostriches, Australian emus and cassowaries, South American rheas and the New Zealand kiwi "“ do not share a common flightless ancestor as once believed. Instead, each species individually lost its flight after diverging from ancestors that did have the ability to fly, according to new research conducted in part by University of Florida zoology professor Edward Braun. The new research, which appears this week in the...

2008-06-27 12:02:21

By Jeremy Manier and Tim De Chant, Chicago Tribune Jun. 27--When a falcon swoops from the sky to seize its fleeing prey, no one would mistake the sleek predator for a gaudy parrot. Yet the secret kinship of falcons and parrots is one of many surprises in a landmark genetic study of 169 bird species being published by Field Museum researchers. The lovely birds we see each day may never look quite the same again. One likely consequence of the study in Friday's edition of the journal...

192b92b1026a1521e66e2623d48fe6bb1
2008-01-24 15:05:00

A letter published in the advanced online publication Nature has revealed new insight into the evolution of flight in birds.    The issue has remained controversial among scientists, and previous theories have usually been based on interpretations of various fossil forms.   However, this new report is based on experimental observations of young birds, and suggests wing-stroke dynamics are the key to understanding the evolution of avian flight. The research was led by...

7916ecdecef9d73c3c929209d221f5701
2007-09-06 15:13:39

An 80-million-year-old dinosaur fossil unearthed in the Gobi Desert of Mongolia demonstrates that miniaturization, long thought to be a hallmark of bird origins and a necessary precursor of flight, occurred progressively in primitive dinosaurs. The find, described in the September 7 issue of the journal Science, is made up of the fossilized bones of a new dinosaur the researchers have named Mahakala, and includes portions of its skull, forelimb and hindlimb, as well as much of the vertebral...


Word of the Day
ramage
  • Boughs or branches.
  • Warbling of birds in trees.
Related