Molly R. Morris is an American behavioral ecologist who has worked with treefrogs and swordtail fishes in the areas of alternative reproductive tactics and sexual selection.
[1] As a National Science Foundation postdoctoral fellow at the University of Texas at Austin, her work with Mike Ryan demonstrated equal fitnesses between alternative reproductive tactics in a species of swordtail fish.
[2] She joined the faculty at Ohio University in 1997,[citation needed] where she is now a professor in the Department of Biological Sciences.
Her current research relates to diabetes, as well as behavioral ecology, using the swordtail fish Xiphophorus as a model organism.
[4] Morris is married to Kevin de Queiroz, an evolutionary biologist at the Smithsonian Institution's National Museum of Natural History.