Chemoreception in crocodilians: anatomy, natural history, and empirical results.

  title={Chemoreception in crocodilians: anatomy, natural history, and empirical results.},
  author={Paul J. Weldon and Mark W. J. Ferguson},
  journal={Brain, behavior and evolution},
  volume={41 3-5},
Anatomical and behavioral aspects of chemoreception in crocodilians are reviewed. Extant crocodilians possess valvular nostrils regulated by smooth muscles; paired nasal cavities, each with three conchae; and flaps closing the rear of the buccopharyngeal passage to channel inspired air through the nasopharyngeal duct. Olfaction is enhanced by gular pumping, whereby the floor of the pharynx is alternately lowered and raised to pulse air through the nasal cavity. Taste buds occur on the tongue… CONTINUE READING


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