Winthrop Kellogg

Winthrop Niles Kellogg (1898 in Mount Vernon, New York – 1972 in Fort Lauderdale, Florida) was a psychologist best known for writing the study "The Ape and The Child"^{[citation needed]}, Hafner Publishing Company New York and London, 1967. He received his doctorate in psychology from Columbia University. He taught at Indiana University and later at Florida State University.^{[citation needed]}

He married Luella Dorothy Agger of Indianapolis in December 1920 and had two children, Donald Agger Kellogg and Shirley Mae Kellogg.

Winthrop Kellogg's study The Ape and the Child involved his raising a chimpanzee infant, Gua, along with his own son for a period of 9 months, and reported on their comparative behaviors and development. One of the works from his study, Comparative Tests On A Human And A Chimpanzee Infant Of Approximately The Same Age, Part 2 (1932) is available here. He is also known for studies of echolocation in porpoises and humans.