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Ancient Bird Fossil May Suggest Link with Dinosaurs

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Dawn Moline
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« on: January 21, 2007, 03:50:06 am »

Science - Reuters


Ancient Bird Fossil May Suggest Link with Dinosaurs
Fri Oct 22, 4:17 PM ET Science - Reuters



WASHINGTON (Reuters) - Scientists in China have found a 120 million-year-old fossil of a baby bird which is believed to have died just before it hatched and which could shed light on the relationship between dinosaurs and birds.


The discovery of the bird, with a well-developed skull, large curved claws and feathers, could also give an insight into when complex behavior like caring for helpless young first began to evolve.


It could lend credence to the idea that birds of that era, like dinosaurs, were sufficiently developed at birth to function on their own immediately they hatched.


The discovery was described by Zhonghe Zhou and Fucheng Zhang of the Chinese Academy of Sciences in Friday's issue of the journal Science.


The fossil chick was found in deposits in Liaoning in northeast China. While there is no eggshell, the little body is curled up into an egg-shaped space and looks like a developing chick.


The bird looks even more developed than so-called precocial birds that live today. Precocial birds such as Australian Malee fowl hatch with their eyes open and covered with down and can survive on their own fairly quickly.


In contrast, altricial birds are born without feathers and completely helpless. All songbirds are altricial, and scientists believe this type of bird evolved later.


Many researchers believe that birds and dinosaurs evolved from the same ancestor. This month alone fossils have been reported showing that Tyrannosaurs had feathers and that a related dinosaur slept curled up like a bird.


The earliest known bird is the 150 million-year-old Archaeopteryx although scientists have also discovered a 200 million-year-old feathered dinosaur fossil.
http://news.yahoo.com/news?tmpl=story&u=/nm/20041022/sc_nm/science_bird_dc


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Anitra
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« Reply #1 on: March 06, 2011, 11:40:54 pm »

Any name for the feathered dinosaur yet?
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