hi moses, it's same i heard and you know just because of that i am sharing something about species on earth. The greatest species diversity exists among insects, which account for one million of the earth's species known to science. Mammals make up one of the smallest groups, with just 5,490 members. Altogether the earth's oceans, lakes, continents and islands support over 62,000 identified species of vertebrate animals and 320,000 species of plants. How many species are known to currently exist in the world. Category Species Totals 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 Plants Flowering plants (angiosperms) 281,821 Conifers (gymnosperms) 1,021 Ferns and horsetails 12,000 Mosses 16,236 Red and green algae 10,134 Total Plants 321,212 Others Lichens 17,000 Mushrooms 31,496 Brown algae 3,067 Total Others 51,563 TOTAL SPECIES 1,740,330 The species totals do not include domestic animals such as sheep, goats and camels. Nor do they include single-celled organisms such as bacteria.
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