Biological Sciences Department

Geoffrey Smith, PH.D.

Geoffrey Smith, PH.D.

I am a physiological ecologist and integrative biologist. I started this road back in Arkansas, where I worked with turtles and alligators for my undergraduate and master’s research, before working in the private sector measuring the effects of industry on ecosystems. I moved to Logan to get my Ph.D. before moving to St. George. I love field work, and this is a good place to do it.
My dissertation research involves measuring trade-offs between the reproductive and immune systems, mostly in lizards. I started studying the stress of urban life in these lizards here in St. George in 2012 and fell in love with the desert. I told myself I would find a way to live down here, and here I am.
I teach physiology courses for lots of pre-professionals and also Biology II for our majors. These courses are so interesting they almost teach themselves, so it’s a lot of fun. I also do research with undergraduates. My ongoing research includes laboratory and field studies with the side-blotched lizard (the most important lizard in North America) and I’m getting involved with the tree frog projects at Zion National Park. I’m also interested in my students’ ideas. When they are excited about a project, I know that’s what we should be investigating.


Ph.D. in Ecology

  • Utah State University

M.S. in Biology

  • University of Central Arkansas

B.S. in Biology

  • University of Central Arkansas


  • BIOL 1620 - Principles of Biology II
  • BIOL 2420 - Human Physiology
  • BIOL 4400 - Pathophysiology
  • BIOL 4810/4820 - Independent Research I & II


Geoffrey Smith, PH.D.


Phone: 435-879-4610

Office: SET 511