Endangered Animals Chart

The Earth is currently experiencing its sixth major animal extinction event. One out of four of the world's mammals and over 40 percent of amphibians are threatened with extinction due to human activity, including habitat destruction, overexploitation, climate change, and pollution, as well as human overpopulation. 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. Learn about the list of animals that are on the IUCN Red List - including their conservation Status, approximate populations in the wild, and more. This chart shows the preliminary number of animal species of the IUCN Red List in 2025, by class.

The IUCN Red List has assessed the extinction risk of only a small share of the total known species in the world. This means the number of species threatened with extinction is likely to be a significant underestimate of the total number of species at risk. Discover detailed profiles of endangered species and iconic wildlife.

Learn about habitats, threats, and conservation efforts around the globe. Illustration: Chart shows the different categories of endangered species. The IUCN Red List of Threatened Species evaluates the conservation status of plant and animal species.

The list is based on scientific assessment of an organism's status by experts. As our modern society gets more resource-intensive, natural spaces are shrinking, wildlife numbers are declining, and species are still endangered. Download: Top 100 Endangered Animal Species (IUCN-based, 2025) - Tables & Charts ZIP includes CSV/XLSX tables and PNG chart images used in this article (Top 10/Top 20/Top 100 + bar & scatter).