Introduction Comparative psychology can generally be defined as the branch of psychology that studies the similarities and differences in the behavior of organisms. Formal definitions found in textbooks and encyclopedias disagree whether comparative psychologists restrict their work to the study of animals or include the study of human behavior. This paper offers an opinion on the major problem facing comparative psychology today – where we will find the next generation of comparative psychology students. Something must be done before we lose (...) access to an entire generation of psychology undergraduates. It is not enough to say that comparative psychology is being “absorbed” in other academic units such as “integrative biology”, “integrative study of animal behavior”, “evolutionary psychology”, “comparative cognition”, or “animal cognition.” Indeed, many of these topics are not primarily studied in psychology departments, wherein comparative psychology students have traditionally received joint training in the principles of behavior and comparative analysis, as applied to both humans and other animals. Consider, for example, the difference between comparative psychology and comparative cognition. Comparative cognition includes features of comparative psychology, but they are not identical. Comparative cognition represents a very specific theoretical position whose validity is based on certain suppositions such as the belief (by definition) that the internal cogni... (shrink)