2024年12月13日 · IUCN monitors species and ecosystems, and steers policy and action to protect and restore the natural world. Human wellbeing depends on nature and economic development can no longer come at nature’s expense.

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 .

Founded in 1948, IUCN has become the global authority on the status of the natural world and the measures needed to safeguard it. It is involved in data gathering and analysis, research, field projects, advocacy, and education.

IUCN (International Union for Conservation of Nature) is a membership Union of government and civil society organisations. Together, we work to advance sustainable development and create a just world that values and conserves nature.

The IUCN Red List of Threatened Species™ is the world’s most comprehensive information source on the global extinction risk status of animal, fungus and plant species. Open to all, it is used by governmental bodies, non-profit organisations, businesses and individuals.

Currently, there are more than 166,000 species on The IUCN Red List, with more than 46,300 species threatened with extinction, including 44% of reef building corals, 41% of amphibians, 38% of trees, 37% of sharks and rays, 34% of conifers, 26% of mammals, 26% of freshwater fishes and 12% of birds.

The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. [1]

2025年1月8日 · International Union for Conservation of Nature (IUCN), network of environmental organizations founded as the International Union for the Protection of Nature in October 1948 in Fontainebleau, France, to promote nature conservation and the ecologically sustainable use of natural resources.

International Union for Conservation of Nature – United States, a 501 (c) (3) charitable organization, builds bridges between US donors and IUCN, by catalyzing, accelerating, funding and promoting IUCN’s work — conserving nature and natural resources in the United States and throughout the world.

The IUCN Red List of Threatened Species. Version 2024-2. <https://www.iucnredlist.org> © International Union for Conservation of Nature and Natural Resources.