Human-animal relationships History 189 Social aspects 154 Animals 147 Animals and civilization 127 Dogs 127 Animal welfare 126 más ... Moral and ethical aspects 82 Behavior 80 Philosophy 57 Animal rights 54 Symbolic aspects 50 Effect of human beings on 49 Pets 48 Psychological aspects 46 Psychology 41 Animals (Philosophy) 39 Nature 36 Human ecology 34 Animal behavior 30 Animals in literature 30 Social life and customs 30 Therapeutic use 29 Dog owners 28 Conservation 27 Cats 24 Religious aspects 24 Domestication 19 Animal remains (Archaeology) 18 Ecology 18 menos ...