On May 26 in 1876, Robert Mearns Yerkes, one of the founders of comparative (i.e., animal) psychology in the United States, is born the son of a farmer in Breadysville, Pennsylvania. His 1907 book The Dancing Mouse helped establish mice and rats as standard subjects in psychology experimentation. His 1929 book The Great Apes was science's standard work on primates for generations.
—from The Illustrated Almanac of Science, Technology, and Invention