equus note palomino

Horses really can tell if you’re having a bad day.

Horses can read human facial expressions and remember a person’s mood, a recent study has shown.

Horses in the study were shown to respond more positively to people they had previously seen smiling and were wary of those they recall frowning.

When the horses were shown angry faces, their heart rates increased significantly. They also moved their heads to look at the angry photos through their left eye — a key sign that showed researchers the horses were perceiving a negative stimuli.

Many species (like horses) process what their left eye is seeing in the right hemisphere of their brain. And that’s where the brain processes threatening stimuli, researchers noted.

So horses looking at the angry faces with their left eye suggests that they could tell the person in the photo might pose a threat to them.

We have known for a long time that horses are a socially sophisticated species, but this study is the first that proves horses can distinguish between positive and negative human facial expressions.


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