Endangered Animals List 2025. Over 1,550 of the 17,903 marine animals and plants assessed are at risk of extinction, with climate change impacting at least 41% of threatened marine species. Currently, on the international union for conservation of nature (iucn) red list, more than 41,000 species have been assessed to be under threat of extinction.
Species become endangered for two main reasons: 41,000 species are on iucn’s red list of endangered species.