It is organised as follows: Group 1 mammals 187 cards Group 2 birds 125 cards Group 3 reptiles and amphibians 29 cards Group 4 fish 28 cards Group 5 insects and spiders 30 cards Group 6 primitive animals 13 cards Group 7 extinct animals 11 cards Group 8 animal behaviour 29 cards Group 9 local British habitats 33 cards Group 10 world habitats 36 cards Group 11 conservation 31 cards.