Human-animal relationships 161 Animals 137 Animal welfare 110 History 106 Computer animation 101 Moral and ethical aspects 59 Animal behavior 58 more ... Animal rights 52 History and criticism 51 Animated films 50 Behavior 48 Computer graphics 45 Social aspects 45 Three-dimensional display systems 42 Diseases 40 Laboratory animals 36 Animals and civilization 35 Research 35 Ecology 34 Animal remains (Archaeology) 33 Animal nutrition 31 Domestic animals 29 Animal experimentation 28 Animals in literature 27 Philosophy 26 Social behavior in animals 25 Animal communication 24 Animal ecology 22 Animals (Philosophy) 22 Livestock 22 less ...