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RE: Sleeping Dinosaur
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The Feathered Dinosaur - Documentary by NAIT Digital Cinema Students

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Feathery fossils peg early birds to even earlier date

Scientists in China have described a new species of early bird, from two fossils with intact plumage dating to 130 million years ago.
Based on the age of the surrounding rocks, this is the earliest known member of the clade that produced today's birds: Ornithuromorpha.
It pushes back the branching-out of this evolutionary group by at least five million years.

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Lujiatun dinosaur fossil site
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Reassessing China's dinosaur 'Pompeii'

New geological fieldwork in China has changed our understanding of a famous dinosaur fossil site. Up to now, the site at Lujiatun, in Liaoning Province, northeast China, was called the 'Chinese Pompeii' because it was assumed the animals had been killed by volcanic gases and buried at the same time under clouds of ash from erupting volcanoes.
The story is rather different, however.

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Phorusrhacids
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'Terror birds' had deep voices, fossil suggests

A 90%-complete "terror bird" skeleton found on an Argentinean beach suggests these big-beaked predators had good low-frequency hearing and deep voices. It is the most complete skeleton ever discovered for one of these menacing beasts, and represents a new species.
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Why Lizards Have Bird Breath

Whether birds are breathing in or out, air flows in a one-directional loop through their lungs. This pattern was unexpected and for decades, biologists assumed it was unique to birds, a special adaptation driven by the intense energy demands of flight.
But that view is wrong, according to University of Utah scientists who now have shown that bird-like breathing also developed in green iguanas - reptiles not known for high-capacity aerobic fitness. The finding bolsters the case that unidirectional bird-like flow evolved long before the first birds, arising nearly 300 million years ago in a common ancestor of lizards, snakes, crocodiles and dinosaurs including birds.

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Egg shape 'helped birds survive' asteroid impact

The shape of birds' eggs could have helped them survive the mass extinction event that killed off the dinosaurs, new research proposes.
A team analysed the geometric properties of eggs from 250 million years ago (Mesozoic Era) to today.
Before the extinction event about 65 million years ago, eggshells had notable differences to the lineage that survived.
It is these survivors that all modern day birds descend from.

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Dinosaurs 'shrank' regularly to become birds

Huge meat-eating, land-living dinosaurs evolved into birds by constantly shrinking for over 50 million years, scientists have revealed.
Theropods shrunk 12 times from 163kg (25st 9lb) to 0.8kg (1.8lb), before becoming modern birds.
The researchers found theropods were the only dinosaurs to get continuously smaller.

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Feathery dinosaurs
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Kulindadromeus zabaikalicus: 'Fluffy and feathery' dinosaurs were widespread

All dinosaurs were covered with feathers or had the potential to grow feathers, a study suggests.
The discovery of 150-million-year-old fossils in Siberia indicates that feathers were much more widespread among dinosaurs than previously thought.

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Kulindadromeus zabaikalicus
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Fossils found in Siberia suggest all dinosaurs had feathers

The first ever example of a plant-eating dinosaur with feathers and scales has been discovered in Russia. Previously only flesh-eating dinosaurs were known to have had feathers so this new find indicates that all dinosaurs could have been feathered.
The new dinosaur, named Kulindadromeus zabaikalicus as it comes from a site called Kulinda on the banks of the Olov River in Siberia, is described in a paper published today in Science.

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Changyuraptor yangi
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Four-winged dinosaur is 'biggest ever'

A new four-winged dinosaur has been discovered, with exceptionally long feathers on its tail and "hindwings".
Changyuraptor yangi was a gliding predator which lived in the Cretaceous period in what is now Liaoning, China.
Its remarkable tail feathers - measuring up to 30cm - are the longest in any non-avian dinosaur.

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