Robert M. Yerkes was an American psychologist who made significant contributions to the field of comparative psychology. Some synonyms for Yerkes could include: psychologist, researcher, scientist, academic, scholar, educator, intellectual, and innovator. Yerkes became particularly well-known for his research on primate behavior and intelligence, and his focus on understanding the ways in which animals and humans learn and process information in similar and different ways. He was also a strong advocate for the use of science in informing social and educational policies. Yerkes' legacy continues to inspire and inform contemporary research in psychology, and his contributions represent an enduring intellectual and scientific achievement.