Horses have similar facial expressions as humans

Horses share some surprisingly similar facial expressions to humans and chimps. Despite the differences in face structure between horses and humans, there are some similar expressions in relation to movements of the lips and eyes. These findings will ultimately provide an important information for veterinary and animal welfare practices.

Ref: Jen Wathan et al., 2015, PLOS ONE. DOI: 10.1371/journal.pone.0131738