Sight of a Predator Induces a Corticosterone Stress Response and Generates Fear in an Amphibian

  title={Sight of a Predator Induces a Corticosterone Stress Response and Generates Fear in an Amphibian},
  author={E. Narayan and John F. Cockrem and Jean-Marc Hero},
  journal={PLoS ONE},
Amphibians, like other animals, generate corticosterone or cortisol glucocorticoid responses to stimuli perceived to be threatening. It is generally assumed that the corticosterone response of animals to capture and handling reflects the corticosterone response to stimuli such as the sight of a predator that are thought to be natural stressors. Fijian ground frogs ( Platymantisvitiana ) are preyed upon by the introduced cane toads ( Rhinellamarina ), and we used ground frogs to test the… 

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