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Evolution of Flight

  • Ulla M. Norberg
Part of the Zoophysiology book series (ZOOPHYSIOLOGY, volume 27)

Abstract

There are two major conflicting hypotheses about the origin of powered flight in vertebrates, the arboreal (“trees-down”) and cursorial (“ground-up”) theories. According to the arboreal theory, powered flight in birds, bats and pterosaurs evolved via gliding in tree-living animals, while the cursorial theory holds that flapping flight in birds evolved in ground-running and jumping animals without a gliding intermediate.

Keywords

Aerodynamic Model Vertical Lift Modern Bird Wing Stroke Body Drag 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Ulla M. Norberg
    • 1
  1. 1.Department of Zoology, Division of ZoomorphologyUniversity of GöteborgGöteborgSweden

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