Social enrichment mitigates facial expressions and physiological indicators of short-term stress in horses - Ana Caroline Bini de Lima; Vanessa Cristini Sebastião da Fé; Maria Simara Palermo Hernandes; Emily Caroline Pfeifer de Cristo; Ana Gabrieli dos Santos Fagundes Euzébio; Maria Vitória e Silva Sousa; Fabiana Ribeiro Caldara; Viviane Maria Oliveira dos Santos (PLoS ONE, 2026)