Crocodiles - Myth of the Living Fossils
4,082 views · Published 3 January 2013 · 40:28 · Indexed 10 October 2026
Channel: ETSU Online · 2013 · Science & Technology
Dr. Christopher Brochu - Dec. 15, 2012 - Crocodylians - alligators, crocodiles, gharials, and their closest extinct relatives - are often perceived as "living fossils" unchanged since the Days of the Dinosaurs. In fact, Crocodylia first appeared toward the end of this Age, and its subsequent history reveals unexpected complexity. Crocodylian diversity waxed and waned as climate changed, and several groups evolved adaptations very different from those seen today. They crossed large ocean barriers multiple times, and they were the largest predators faced by our African ancestors. Construction of a comprehensive history for the group will allow us to explore the interrelationships of evolution, climate, and environment on a global scale. ETSU Online Programs - http://www.etsu.edu/online
