For millennia, humans and animals have formed symbiotic relationships. We provide protection, animals provide companionship and sustenance. But only recently did scholars begin studying the human-animal relationship in-depth, seeking answers to why and how we relate to other species. Psychologist Hal Herzog is at the head of this field, and his new book Some We Love, Some We Hate, Some We Eat: Why It's So Hard to Think Straight About Animals illuminates many different aspects of our thoughts on animals. More