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. 2021 May 9;11(5):1347. doi: 10.3390/ani11051347

Figure 1.

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).