EquiFACS: The Equine Facial Action Coding System

An equine pain face

(2015) Karina B Gleerup et al.   VETERINARY ANAESTHESIA AND ANALGESIA

Children, but not chimpanzees, have facial correlates of determination

(2014) B. M. Waller et al.   Biology Letters

The eyes and ears are visual indicators of attention in domestic horses

(2014) Jennifer Wathan et al.   CURRENT BIOLOGY

Development of the Horse Grimace Scale (HGS) as a Pain Assessment Tool in Horses Undergoing Routine Castration

(2014) Emanuela Dalla Costa et al.   PLoS One

Paedomorphic Facial Expressions Give Dogs a Selective Advantage

(2013) Bridget M. Waller et al.   PLoS One

GibbonFACS: A Muscle-Based Facial Movement Coding System for Hylobatids

(2012) Bridget M. Waller et al.   INTERNATIONAL JOURNAL OF PRIMATOLOGY

OrangFACS: A Muscle-Based Facial Movement Coding System for Orangutans (Pongo spp.)

(2012) Cátia C. Caeiro et al.   INTERNATIONAL JOURNAL OF PRIMATOLOGY

Evolution of the Muscles of Facial Expression in a Monogamous Ape: Evaluating the Relative Influences of Ecological and Phylogenetic Factors in Hylobatids

(2011) Anne M. Burrows et al.   Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology

Brief communication: MaqFACS: A muscle-based facial movement coding system for the rhesus macaque

(2010) L.A. Parr et al.   AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY

Facial musculature in the rhesus macaque (Macaca mulatta): evolutionary and functional contexts with comparisons to chimpanzees and humans

(2009) Anne M. Burrows et al.   JOURNAL OF ANATOMY

On the origin, homologies and evolution of primate facial muscles, with a particular focus on hominoids and a suggested unifying nomenclature for the facial muscles of the Mammalia

(2009) R. Diogo et al.   JOURNAL OF ANATOMY

The Earliest Horse Harnessing and Milking

(2009) A. K. Outram et al.   SCIENCE

Development of a composite orthopaedic pain scale in horses

(2007) G. Bussières et al.   RESEARCH IN VETERINARY SCIENCE