Did ‘puppy dog eyes’ expression evolve exclusively in dogs due to domestication?
New research reveals that coyotes, like domestic dogs, have the ability to produce the famous “puppy dog eyes” expression. The study challenges the hypothesis that this facial feature evolved exclusively in dogs as a result of domestication. The researchers examined the levator anguli oculi medialis (LAOM), the muscle responsible for raising the inner eyebrow to create ‘puppy dog…
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