Figure \PageIndex1: As of 2020, there were 41,415 species on the International Union for Conservation of Nature (IUCN) Red List, 16,306 of them being endangered and threatened with extinction. S...Figure \PageIndex1: As of 2020, there were 41,415 species on the International Union for Conservation of Nature (IUCN) Red List, 16,306 of them being endangered and threatened with extinction. Soon after, they were listed as critically endangered on the IUCN red list and endangered on the U.S Endangered Species Act. Regrettably, not all species that end up on the IUCN red list or endangered species list have trajectories that later hold such hope.. (Image by USFWS; CC-BY 2.0))
