Animals
by Aurora Lai
1. Vertebrate animals
1.1. Mammals
1.2. Birds
1.3. Fish
1.4. Repetiles
1.5. Amphibians
2. Invertebrate animals
2.1. Molluscs
2.1.1. Gastropods
2.1.2. Cephalopods
2.1.3. Bivalves
2.2. Arthropods
2.2.1. Crustacean
2.2.2. Arachnids
2.2.3. Insects
2.2.4. Myriapods