The International Union for Conservation of Nature (IUCN) is a global organization dedicated to the conservation of nature and the sustainable use of natural resources. Founded in 1948, it brings together governments, non-governmental organizations, scientists, and experts to address environmental challenges. The IUCN is known for its work in assessing the conservation status of species and ecosystems, which helps inform policy and conservation efforts worldwide. One of the IUCN's key initiatives is the IUCN Red List of Threatened Species, which evaluates the risk of extinction for various species. This list serves as a critical tool for conservationists, policymakers, and researchers, guiding efforts to protect biodiversity and promote sustainable practices. Through collaboration and research, the IUCN aims to influence global environmental policies and foster a more sustainable relationship between humans and nature.