Did Dinosaurs Evolve From Birds?

Feb. 20, 2019

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After carefully studying the movements and breathing patterns of birds, scientists claim that these feathered human friends do not originate from dinosaurs.

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For decades, it has been clear that the leg bone structure of birds makes them more suitable for running on the knees. But researchers at Oregon State University have found that the leg bone structure of birds also prevents their lungs from stretching, making them more suitable for flying. Any other animal that walks on land, including theropod dinosaurs, such as humans, elephants, lizards, and Tyrannosaurus, has movable leg bones.

Scientists have long believed that modern birds are direct descendants of ancient carnivorous dinosaurs, and this discovery may force paleontologists to rethink this issue. Professor John Ruben, an American researcher, said: "We are not really aware of the most basic bird biology problems. This is very surprising. The Velociraptor not only has feathers in certain parts of the body but also likes to Activities after sunset. Birds may have evolved from another creature. The evolution of birds has begun when most dinosaurs still exist.” The unique movements of feathers, wings, and birds are independent. 

During the Cretaceous era of 145 million to 65 million years, both dinosaurs and birds flourished. It has always been considered the oldest bird - Archaeopteryx lived 150 million years ago, and dinosaurs preceded it, as early as 200 million years ago. Ruben said: "It seems very clear now that birds have evolved separately and are not descendants of theropod dinosaurs."

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Comments
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    2021/04/20

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      Gengu:

      2021/04/21

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    2021/04/19

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      2021/04/20

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    2021/04/19

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      2021/04/19

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    2021/04/16

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      Gengu:

      2021/04/17

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    2021/04/16

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      Gengu:

      2021/04/16

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    2021/04/14

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      Gengu:

      2021/04/14

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    2021/04/13

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      Gengu:

      2021/04/13

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    2021/04/13

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      2021/04/13

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    2021/04/13

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      Gengu:

      2021/04/13

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    2021/04/12

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      Gengu:

      2021/04/12

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