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How many animals live on earth?

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Vertebrate Animals
Mammals 5,490
Birds 9,998
Reptiles 9,084
Amphibians 6,433
Fishes 31,300
Total Vertebrates 62,305
Invertebrate Animals
Insects 1,000,000
Spiders and scorpions 102,248
Molluscs 85,000
Crustaceans 47,000
Corals 2,175
Others 68,827

Total Invertebrates 1,305,250
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