Development and evolutionary origin of feathers.

  title={Development and evolutionary origin of feathers.},
  author={Richard O. Prum},
  journal={The Journal of experimental zoology},
  volume={285 4},
  • R. Prum
  • Published 15 December 1999
  • Biology
  • The Journal of experimental zoology
Avian feathers are a complex evolutionary novelty characterized by structural diversity and hierarchical development. [] Key Method A transition series of follicle and feather morphologies is hypothesized to have evolved through a series of stages of increasing complexity in follicle structure and follicular developmental mechanisms.

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