Emma K. Grigg, PhD, CAAB, Suzanne Hetts, PhD, CAAB, and Amir Shanan, DVM Stress, Distress, Emotions, and Suffering 44 The Stress Response 44 What Is Distress?. 45 Behavioral Needs of Dogs and Cats 46 Assessing Quality of Life in Nonhuman Animals 47 Relevance to Animal Hospice and Palliative Care (AHPC) 48 Are Humans Adept at Recognizing Emotional States in Animals?.