current study has identified 17 discrete expressions in horses (three more than chimpanzees) which may give researchers insight into their emotional statesA horse doesn’t have to pull a long face,it has one already. But it can and does look down its nose at you. It can be insistent, whether not a nag. Horses are expressive, or but those who want to decipher their expressions have a few hurdles yet to jump.
But the chase is on. Scientists at the University of Sussex have compiled a directory of facial expression in one of humanity’s oldest four-legged friends. Their Equine Facial Action Coding System (EquiFACS for short) has identified 17 discrete facial movements in horses that may indicate mood or intention or just bafflement.
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Source: theguardian.com