Cougar

A cougar from Canada was an object in the game of Time-Space Scavenger Hunt played by the Twelfth Doctor and Miss Chief. (COMIC: Witch Hunt)

Behind the scenes

 * Miss Chief claims that cougars are extinct. In reality, cougars are not extinct. She is most likely referring to the, a sub-species of cougar, which is extinct. The artwork reflects this, as Miss Chief's cougar bears a resemblance to the Eastern Cougar.