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Paedomorphic Facial Expressions Give Dogs a Selective Advantage

Figure 1

Example of facial movement AU101 (inner brow raiser) in a domestic dog (Rhodesian Ridgeback, not a subject in the study), increasing the height and overall size of the orbital cavity (eye): A) neutral on right side of face, B) AU101 on right side of face.

Figure 1

doi: https://doi.org/10.1371/journal.pone.0082686.g001