Descovich KA, Wathan J, Leach MC, Buchanan-Smith HM, Flecknell P, Farningham D, Vick S-J. Facial expression: An under-utilized tool for the assessment of welfare in mammals. ALTEX [Internet]. 2017 Aug. 1 [cited 2024 Apr. 19];34(3):409-2. Available from: https://altex.org/index.php/altex/article/view/37