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Biodiversity – Facts and Figures

  • Not all the world’s species have been discovered yet, but scientists believe that there could be as many as 100 million species on the planet.
  • It is predicted that 1 in 4 mammal species and 1 in 8 bird species could risk extinction in the near future. The populations of all of these species are expected to fall by at least one fifth in the next 10 years.
  • There are currently over 16,000 species of plants and animals listed as threatened species by the International Union for Conservation of Nature and Natural Resources.
  • At the present rates of extinction, the Earth could lose as many as one-fifth of all known species by 2025.

International Union for Conservation of Nature and Natural Resources, 2002.
World Wildlife Fund, 2002.

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