This video made in 1937 or 1938 documents what happened when cats were placed in a puzzle box:
Edwin Ray Guthrie [pictured here sitting in a room which was, one must admit, a form of box] and G. Plant Horton were the human researchers.
This video made in 1937 or 1938 documents what happened when cats were placed in a puzzle box:
Edwin Ray Guthrie [pictured here sitting in a room which was, one must admit, a form of box] and G. Plant Horton were the human researchers.