Movie 3.

An example of a raccoon that never habituates to the testing device. The raccoon is seen approaching the device for the first (and only) time. When his PIT tag is detected, the device activates and releases a food reward. In response, the raccoon runs away and is not detected again by a testing device for the remainder of the study.

Environmental, individual and social traits of free-ranging raccoons influence performance in cognitive testing

Lauren A. Stanton, Eli S. Bridge, Joost Huizinga, and Sarah Benson-Amram

Journal of Experimental Biology 2022. 225:None-None; doi: 10.1242/jeb.243726