Home›Comparative Psychology›Era (Birth Year)›By Decade›1940sBrowse By1940s1940sComments (0)Reader Challenges (0)1940sFilter Results2 entriesBranch of PsychologyAllBiological Psychology (1)Comparative Psychology (1)Nationality / CultureAllUnited States (2)Show ResultsBrowseCompareSelect all 2Gordon G. Gallup Jr.1940sSue Savage-Rumbaugh1940sComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.