John G. Geer
In Defense of Negativity
Attack Ads in Presidential Campaigns
Marty Crump is a behavioral ecologist who has worked with tropical amphibians in the areas of parental care, reproduction, territoriality, cannibalism, and tadpole ecology. Her work has drawn attention to the issue of declining amphibian populations. She is a tropical ecologist with the department of biological science at Utah State University, as well as an adjunct professor at the department of biological sciences at Northern Arizona University.