A history of primatology in India (In memory of Professor Sheo Dan Singh)

India harbors a wide diversity of primates with 24 species that include lorises, macaques, langurs and gibbons. Systematic research on the primates in India started about 60 years ago. In order to develop a historical perspective, we recognize three broad phases of primate research: largely natural history and base line research, primarily behavioral ecology research, and increasingly question and hypothesis-driven research. We describe the old and the recent primate research in the country and suggest research areas for the future.