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EquiFACS: The Equine Facial Action Coding System

Fig 5

AU10, upper lip raiser (+ 16 + 17 + 25 + 27 + AD1 [AD1 seen in part B only]).

Part A shows appearance changes 1, 2, 3, 4, and 7; part B shows appearance changes 2, 4, 5, 6, and 7.

Fig 5

doi: https://doi.org/10.1371/journal.pone.0131738.g005