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The Dog Facial Action Coding System (DogFACS) is a scientific observational tool for identifying and coding facial movements in dogs. The system is based on the facial anatomy of dogs and has been adapted from the original FACS system used for humans created by Ekman and Friesen (1978). The DogFACS manual details how to use the system and code the facial movements of dogs objectively. http://dogfacs.com/index.html

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и про кошечек такое же сделали!

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