“Observation Learning in Cats”, E. Roy John, Phyllis Chesler, Frank Bartlett, Ira Victor1968-03-20 (cat psychology)⁠:

In two experiments cats acquired a stimulus-controlled approach or avoidance response by observational or conventional shaping procedures.

Observer cats acquired the avoidance response (hurdle jumping in response to a buzzer stimulus) significantly faster and made fewer errors than cats that were conventionally trained.

Observer cats acquired the approach response (lever pressing for food in response to a light stimulus) with significantly fewer errors than cats that were conventionally trained.

In some cases, observer cats committed one or no errors while reaching criterion.