Reconstruction of <i>Caudipteryx</i> robot to identify the origin of avian flapping flight

DOI Web Site Web Site 被引用文献1件
  • Jing-Shan Zhao
    Department of Mechanical Engineering, Tsinghua University, Beijing, P. R. China
  • Yaser S Talori
    Department of Mechanical Engineering, Tsinghua University, Beijing, P. R. China
  • Hongwei Song
    Department of Mechanical Engineering, Tsinghua University, Beijing, P. R. China
  • Wen-Xiu Lu
    Department of Mechanical Engineering, Tsinghua University, Beijing, P. R. China
  • Jingmai K O’Connor
    Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, P. R. China
  • Zhi-Heng Li
    Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, P. R. China

抄録

<jats:p> The origin of bird and avian flight is one of the most controversial debates since the fossil of Archaeopteryx was found in Germany. With the continuous discoveries of relative fossils of dinosaurs from all over the world, scientists have reached a consensus that the ancestors of bird might be small sized non-avian theropod dinosaurs. However, the disputation focus now remains in how the dinosaur learned to fly. Via analysis of kinematics and dynamics of reconstructed Caudipteryx robot on the test rig, we discovered that the flapping motion of the forearms of feathered dinosaurs was developed as they were only able to run on the ground when it was long before it could actually fly in the sky. This study supports the inferences that the performance of powered flapping flight was evolved long before the feathered dinosaurs could fly. This is a completely natural biophysical principle that provides a vital role to comprehend the evolution of avian flight. </jats:p>

収録刊行物

被引用文献 (1)*注記

もっと見る

キーワード

問題の指摘

ページトップへ