Equi FACS: The Equine Facial Action Coding System

EquiFACS: The Equine Facial Action Coding System. Jen Wathan et al (2015), PLoS ONE Although previous studies of horses have investigated their facial expressions in specific contexts, e. g. pain, until now there has been no methodology available that documents all the possible facial movements of the horse and provides a way to record all potential facial configurations. This is essential for an objective description of horse facial expressions across a range