Zoology Life Sciences 2,956 SCIENCE 2,948 NATURE 2,002 Animals 1,999 General 1,240 Mammals 663 Birds 521 Ornithology 500 Birdwatching Guides 480 Oiseaux 327 Ichthyology & Herpetology 320 Fish 313 Entomology 302 Behavior 284 Ecology 283 Insects & Spiders 243 Mœurs et comportement 231 Animaux 197 History 189 Evolution 174 Animal behavior 173 Écologie 164 Histoire 158 Conservation 151 Wildlife 141 Physiology 140 Évolution 136 Physiologie 129 Insectes 124