I haven't heard much about Companion Animal Biology other than that it's objectively "bad" (the assessment looks very nice, though), but I do have it on good authority that Applied Animal Physiology is hands-down the worst subject in the world and that you shouldn't even think of touching it if you want to live (from 5 people or so, and friends with 2nd year friends have apparently heard the same thing). As for other non-Animals in Society DASC subjects, I've heard little, so I don't think I'm qualified to say anything about them. But if you want to do an animal physiology subject Comparative Animal Physiology is apparently a recommended subject for physiology majors (or at least a prereq option, so it must be useful). Otherwise I guess you could just stick to humans?