An ethologist is a scientist who studies the behavior of animals in their natural habitat. If you are looking for synonyms for the word ethologist, here are some possible alternatives: animal behaviorist, zoologist, wildlife biologist, comparative psychologist, and animal ecologist. While some of these terms may lean more towards a focus on anatomy or ecology, they all share the common thread of studying animal behavior. These professionals may use a variety of techniques to observe and analyze animal behavior, including field observation, experimentation, and statistical analysis. By understanding animal behavior, ethologists and their counterparts can gain insight into ecology, evolution, and animal psychology.