The statistic above represents the number of species on earth as of 2018, broken down by vertebrate group and biogeographic realm. In 2018, there were some 1,500 species of birds and 320 species occupying the Afrotropical realm.
Number of terrestrial and freshwater species as of 2018, by vertebrate group and biogeografic realm
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WWF. (October 30, 2018). Number of terrestrial and freshwater species as of 2018, by vertebrate group and biogeografic realm [Graph]. In Statista. Retrieved November 24, 2024, from https://www.statista.com/statistics/343465/number-of-species-on-earth-by-vertebrate-group-and-biogeografic-realm/
WWF. "Number of terrestrial and freshwater species as of 2018, by vertebrate group and biogeografic realm." Chart. October 30, 2018. Statista. Accessed November 24, 2024. https://www.statista.com/statistics/343465/number-of-species-on-earth-by-vertebrate-group-and-biogeografic-realm/
WWF. (2018). Number of terrestrial and freshwater species as of 2018, by vertebrate group and biogeografic realm. Statista. Statista Inc.. Accessed: November 24, 2024. https://www.statista.com/statistics/343465/number-of-species-on-earth-by-vertebrate-group-and-biogeografic-realm/
WWF. "Number of Terrestrial and Freshwater Species as of 2018, by Vertebrate Group and Biogeografic Realm." Statista, Statista Inc., 30 Oct 2018, https://www.statista.com/statistics/343465/number-of-species-on-earth-by-vertebrate-group-and-biogeografic-realm/
WWF, Number of terrestrial and freshwater species as of 2018, by vertebrate group and biogeografic realm Statista, https://www.statista.com/statistics/343465/number-of-species-on-earth-by-vertebrate-group-and-biogeografic-realm/ (last visited November 24, 2024)
Number of terrestrial and freshwater species as of 2018, by vertebrate group and biogeografic realm [Graph], WWF, October 30, 2018. [Online]. Available: https://www.statista.com/statistics/343465/number-of-species-on-earth-by-vertebrate-group-and-biogeografic-realm/