Human-animal relationships History 192 Social aspects 156 Animals 147 Animals and civilization 130 Animal welfare 126 Dogs 126 mere ... Moral and ethical aspects 82 Behavior 79 Philosophy 56 Animal rights 54 Symbolic aspects 50 Effect of human beings on 49 Pets 47 Psychological aspects 47 Psychology 40 Animals (Philosophy) 39 Nature 36 Human ecology 34 Social life and customs 31 Animal behavior 30 Animals in literature 30 Therapeutic use 29 Dog owners 28 Conservation 27 Religious aspects 25 Cats 24 Domestication 19 Animal remains (Archaeology) 18 Ecology 18 mindre ...