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  2. The world's 100 most threatened species - Wikipedia

    en.wikipedia.org/wiki/The_world's_100_most...

    The World's 100 most threatened species [1] is a compilation of the most threatened animals, plants, and fungi in the world. It was the result of a collaboration between over 8,000 scientists from the International Union for Conservation of Nature Species Survival Commission (IUCN SSC), along with the Zoological Society of London . [ 2 ]

  3. List of endangered reptiles - Wikipedia

    en.wikipedia.org/wiki/List_of_endangered_reptiles

    For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered reptiles are listed ...

  4. List of critically endangered reptiles - Wikipedia

    en.wikipedia.org/wiki/List_of_critically...

    Critically endangered (CR) species face an extremely high risk of extinction in the wild. As of September 2016, the International Union for Conservation of Nature (IUCN) lists 195 critically endangered reptile species, including 17 which are tagged as possibly extinct. [1] [2] 3.8% of all evaluated reptile species are listed as critically ...

  5. Lists of IUCN Red List critically endangered species - Wikipedia

    en.wikipedia.org/wiki/Lists_of_IUCN_Red_List...

    Animals (kingdom Animalia) — IUCN Red List critically endangered species (Animalia) Amphibians — List of critically endangered amphibians; Birds — List of critically endangered birds; Fish — List of critically endangered fishes; Invertebrates — List of critically endangered invertebrates. Arthropods — List of critically endangered ...

  6. List of threatened reptiles and amphibians of the United States

    en.wikipedia.org/wiki/List_of_threatened...

    According to the International Union for Conservation of Nature (IUCN), 93 reptile and amphibian species in the United States are threatened with extinction. [1] The IUCN has classified each of these species into one of three conservation statuses: vulnerable VU, endangered EN, and critically endangered CR.

  7. IUCN Red List - Wikipedia

    en.wikipedia.org/wiki/IUCN_Red_List

    The Red List of 2012 was released 19 July 2012 at Rio+20 Earth Summit; [17] nearly 2,000 species were added, [18] with 4 species to the extinct list, 2 to the rediscovered list. [19] The IUCN assessed a total of 63,837 species which revealed 19,817 are threatened with extinction.