The Collared Lizard, Crotaphytus collaris, is the state
of Oklahoma. These are large, territorial, insectivorous lizards. This
individual is a territory-holding male in the classic territory-defense
posture. This photograph was taken at the Ten-Acre Rock in Johnston
Oklahoma, May 1998, by Steven Goldsmith.
Vertebrate Biology examines selected aspects of the morphology,
physiology, life history, ontogeny, ecology, behavior, taxonomy, fossil
history, and phylogenetic development of the vertebrate animals.
is on phylogeny, ecology, behavior, and adaptiveness of structure and
Offered each spring.
Sample Exam Questions
Text and images copyright Steven Goldsmith, 2008; last