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IUCN Red List of Threatened SpeciesIUCN Red List of Threatened Species 2025-2 Login / Register ☀ What's New Contact Terms of Use English Japanese French Spanish The IUCN Red List of Threatened Species Site navigation About Assessment process Resources & Publications Support us Advanced Menu Advanced ? More than 48,600 species are threatened with extinction That is 28% of all assessed species. Amphibians 41% Mammals 26% Conifers 34% Birds 11% Sharks & Rays 38% Reef corals 44% Selected Crustaceans 28% reptiles 21% Cycads 71% Take action Help us make The IUCN Red List a more complete barometer of life. News from IUCN IUCN marks 60th anniversary of Red List with year-long campaign to accelerate species assessments Supporters of IUCN gathered on the sidelines of the 16th CoP to the UN Convention on Biodiversity in Cali, Colombia on 28 October to celebrate the 60th anniversary of the IUCN Red List of Threatened Species and to chart an ambitious path forwards for expanding the “barometer of life”. Read the full article on IUCN Read the full article on IUCN 2025-10-10 Mounting risks threaten survival of wild European pollinators – IUCN Red List Nearly 100 threatened wild European bee species were added to the IUCN Red List, including >20% of species in groups such as bumblebees and cellophane bees. The 2025-2 IUCN Red List also reveals threatened European butterfly species increased by 76% over the last decade. Read the full article on IUCN Read the full article on IUCN 2025-10-10 Arctic seals threatened by climate change, birds decline globally – IUCN Red List Three Arctic seal species moved closer to extinction in the latest update of the IUCN Red List. The 2025-2 update also reveals more than half of bird species globally are in decline. Meanwhile, the global Green Turtle population is rebounding thanks to conservation. Read the full article on IUCN Read the full article on IUCN See all news Green Turtle (Chelonia mydas) (Least Concern, ver. 3.1) What is The IUCN Red List? Established in 1964, The International Union for Conservation of Nature’s Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species. The IUCN Red List is a critical indicator of the health of the world’s biodiversity. Far more than a list of species and their status, it is a powerful tool to inform and catalyze action for biodiversity conservation and policy change, critical to protecting the natural resources we need to survive. It provides information about range, population size, habitat and ecology, use and/or trade, threats, and conservation actions that will help inform necessary conservation decisions. Learn more about The IUCN Red List The IUCN Red List Categories and Criteria The IUCN Red List Categories and Criteria are intended to be an easily and widely understood system for classifying species at high risk of global extinction. It divides species into nine categories: Not Evaluated, Data Deficient, Least Concern, Near Threatened, Vulnerable, Endangered, Critically Endangered, Extinct in the Wild and Extinct. Data Deficient (DD) A taxon is Data Deficient (DD) when there is inadequate information to make a direct, or indirect, assessment of its risk of extinction based on its distribution and/or population status. A taxon in this category may be well studied, and its biology well known, but appropriate data on abundance and/or distribution are lacking. Species categorized as Data Deficient (DD) Least Concern (LC) A taxon is Least Concern (LC) when it has been evaluated against the Red List criteria and does not qualify for Critically Endangered, Endangered, Vulnerable or Near Threatened. Species categorized as Least Concern (LC) Near Threatened (NT) A taxon is Near Threatened (NT) when it has been evaluated against the criteria but does not qualify for Critically Endangered, Endangered or Vulnerable now, but is close to qualifying for or is likely to qualify for a threatened category in the near future. Species categorized as Near Threatened (NT) Vulnerable (VU) A taxon is Vulnerable (VU) when the best available evidence indicates that it meets any of the criteria A to E for Vulnerable, and it is therefore considered to be facing a high risk of extinction in the wild. Species categorized as Vulnerable (VU) Endangered (EN) A taxon is Endangered (EN) when the best available evidence indicates that it meets any of the criteria A to E for Endangered, and it is therefore considered to be facing a very high risk of extinction in the wild. Species categorized as Endangered (EN) Critically Endangered (CR) A taxon is Critically Endangered (CR) when the best available evidence indicates that it meets any of the criteria A to E for Critically Endangered, and it is therefore considered to be facing an extremely high risk of extinction in the wild. Species categorized as Critically Endangered (CR) Extinct in the Wild (EW) A taxon is Extinct in the Wild (EW) when it is known only to survive in cultivation, in captivity or as a naturalized population (or populations) well outside the past range. A taxon is presumed Extinct in the Wild when exhaustive surveys in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon's life cycle and life form. Species categorized as Extinct in the Wild (EW) Extinct (EX) A taxon is Extinct (EX) when there is no reasonable doubt that the last individual has died. A taxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon's life cycle and life form. Species categorized as Extinct (EX) Not Evaluated (NE) A taxon is Not Evaluated (NE) when it has not yet been evaluated against the criteria. Not Evaluated (NE) species are not published on the IUCN Red List Our goals To date, more than 172,600 species have been assessed for The IUCN Red List. This is an incredible achievement. However, our work is nowhere near complete. We need to substantially increase the number of wild species assessed, particularly plants, invertebrates and fungi. Our current goals, based on the IUCN Red List Strategic Plan (2021-2030), are to have 260,000 species assessed and to reassess 142,000 of those species to ensure the information on their status is up-to-date so that we can monitor trends in change of status. Meeting these goals will provide the most up-to-date indication of the health of the world’s biodiversity to guide critical conservation action. This is only achievable with support from people like you. Donate now Goal statistics Species assessed 172,620 Goal 260,000 87,380 species remaining The Red List Partnership About Searching The IUCN Red List How the Red List is Used IUCN–Toyota Partnership Red List Committee The IUCN Green Status of Species Regional Red List Assessments Sponsors Barometer of Life Citing The IUCN Red List Red List Partnership Frequently Asked Questions Background & History ASSESSMENT PROCESS Reasons for Changing Category Measuring Recovery with the IUCN Green Status of Species Red List Index (RLI) Red List Authorities Raw Data to Red List Assessment Petitions IUCN Species Information Service (SIS) The Species Threat Abatement and Restoration (STAR) Metric Planned Red List Updates Supporting Information Pre-publication RESOURCES AND PUBLICATIONS Amazing Species Scientific Papers Guidelines & Brochures Photos and videos Books Related publications Tools Red List Training Summary Statistics Spatial Data & Mapping Resources Support Give us feedback Contact Thank you for your support! Donate What's New Donate now Follow us Facebook X (Twitter) IUCN 2026. The IUCN Red List of Threatened Species. Version 2025-2. ISSN 2307-8235 Privacy and security © International Union for Conservation of Nature and Natural Resources. This website was made possible through generous support from: Toyota Motor Corporation , Synchronicity Earth My Account Log in You must log in to access advanced IUCN Red List functionality. Please enter your e-mail address and password below. Email address Password Remember me Log in Forgot your password? Resend Confirmation Email or Sign in with Facebook Sign in with Google Sign in with Twitter By registering/signing up through either Facebook, Google or Twitter account, you are hereby acknowledging that you have read, and also accept the Privacy policy Register for an account To save searches and access a historical view of information you have downloaded you are required to register for an account. Register now

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