Figure 1.
The equine face can reveal much about the animal’s affective state. (A): A young horse with what could be described as a “pleasure” face. Note the relaxed eyes, extended upper lips, and loosely backward ears (Photo credit P McGreevy). (B): A horse displaying indications of stress including tightening around eyes, tension above the eye area, pronounced chin, and flared nostrils (Photo credit K Merkies).
