Animals NATURE 463 SCIENCE 386 Life Sciences 347 Zoology 340 General 141 Birds 118 more ... History 107 Mammals 104 Human-animal relationships 103 Ornithology 96 Birdwatching Guides 95 Animaux 75 Oiseaux 67 Wildlife 65 Histoire 60 Fish 51 Behavior 48 Ichthyology & Herpetology 48 Ecology 47 Religious aspects 45 Social aspects 45 Evolution 42 Mœurs et comportement 42 Insects & Spiders 38 Relations homme-animal 37 Symbolic aspects 36 Conservation 35 Paleontology 35 Dinosaurs & Prehistoric Creatures 34 less ...