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Horses use similar facial muscles to humans, suggesting an evolutionary parallel in how horses and humans use the face to communicate.

Why the long face?

Horses and humans share facial expressions

Horses share some surprisingly similar facial expressions to humans and chimps, according to new University of Sussex research. Mammal communication researchers have shown that, like humans, horses use muscles underlying various facial features — including their nostrils, lips and eyes — to alter their facial expressions in a variety of social situations. The findings, published