Response of hatchling Komodo Dragons (Varanus komodoensis) at Denver Zoo to visual and chemical cues arising from prey.
Five hatchling Komodo Dragons (Varanus komodoensis) at Denver Zoo were observed in two experiments that studied the effects of visual and chemical cues arising from prey. Rate of tongue flicking was recorded in Experiment 1, and amount of time the lizards spent interacting with stimuli was recorded in Experiment 2. Our hypothesis was that young V. komodoensis would be more dependent upon vision than chemoreception, especially when dealing with live, moving, prey. Although visual cues, including prey motion, had a significant effect, chemical cues had a far stronger effect. Implications of this falsification of our initial hypothesis are discussed.
Chiszar
David
D
Department of Psychology, University of Colorado, Boulder, Colorado 80309, USA. chiszar@psych.colorado.edu
Krauss
Susan
S
Shipley
Bryon
B
Trout
Tim
T
Smith
Hobart M
HM
D000818:Animals; D000836:Animals, Zoo; D003120:Colorado; D003463:Cues; D005247:Feeding Behavior; D008116:Lizards / Q000502:physiology*; D010465:Perception; D011235:Predatory Behavior / Q000502:physiology*; D014059:Tongue / Q000502:physiology