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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 .
- IUCN Red List of Threatened Species
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- IUCN Red List of Threatened Species
Established in 1964, the IUCN 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.
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- 'El Jefe' Among 7 Jaguars Spotted in AZ in Past 25 Years
- 'Lil' Jefe' Believed to Be Arizona's Last Known Ocelot
- Mexican Gray Wolf Sees Comeback After Breeding Program Introduced
- Black-Footed Ferret, only Native Ferret to North America
- The 'Desert Ghost': Sonoran Pronghorn
- The Largest Cyprinid Fish in North America, The Colorado Pikeminnow
- Apache Trout, One of The First Species Listed Under Endangered Species Act
- Gila Trout Successfully Reintroduced to Arizona
- Northern Aplomado Falcon Returns to The Southwest
- California Condor, Once Extinct in The Wild, Found in Northern Arizona
Their range once expanded in the U.S. from Louisiana to California, but today jaguars only occupy a small portion of that area. Federally listed as endangered since 1972, the large cat is believed to only roam the U.S. side of the border in an area south of Interstate 10. Habitat fragmentation, climate change and the border wall all remain major th...
“Lil’ Jefe,” or "lil’ boss," is believed to be the last remaining ocelot in Arizona, cut off from other populations of its species by the border wall. Ocelots were once abundant in the high Sonoran Desert, but their numbers plummeted as hunters sought their fur and urbanization encroached on their habitat. Lil’ Jefe was last spotted in the Huachuca...
The Mexican Gray wolf is the rarest subspecies of gray wolf in the U.S. Though they once numbered in the thousands, the wolves were nearly entirely wiped out by the 1970s. An interagency Mexican Wolf recovery team was formed and a breeding program was established, and in 1998, the first wolves were released back in the wild. Now, 25 years later, th...
The black-footed ferret is one of the most endangered mammals in North America. The only native ferret found on the continent, the species was believed to be extinct until 1981, when it was rediscovered on a Wyoming ranch by a dog named Shep. The U.S. Fish and Wildlife Service began an intensive search and discovered a population of more than 100 f...
Known as the “desert ghost,” the Sonoran pronghorn is endemic to the Sonoran Desert. They are the fastest land mammal in North America, reaching speeds up to 60 mph. The Sonoran pronghorn was extirpated from its range in California by the 1950s due to overhunting, fencing and water source development. In 2002 only 21 Sonoran pronghorns remained in ...
The Colorado pikeminnow is the largest cyprinid fish in North America, with reports of the fish growing up to 6 feet long. The fish is native to the Colorado River Basin and was formerly an important source of food for Indigenous communities. Their range has been significantly reduced due to dewatering, altered streamflow and diversion, poor water ...
Arizona’s state fish, once known as yellowbelly for its distinct gold underside, was one of the first species listed under the Endangered Species Act. It can only be found in the White Mountains of eastern Arizona. An integral part of the White Mountain Apache Tribe history, the fish nearly went extinct in the mid-20th century due to overfishing an...
A close relative of the Apache trout, the Gila trout can be identified by the dark spots on its back. One of the rarest subspecies of trout in the world, the fish was downlisted from endangered to threatened in 2006. While its historic range is unknown, it is believed the fish were once abundant in rivers throughout the state and in high elevations...
This long-tailed and long-winged falcon catches birds and insects in midair and hunts lizards and small mammals on foot. Characterized by a distinctive black-and-white facial pattern, the northern aplomado falcon went extinct in the wild by the late 1950s. The Peregrine Fund and other conservation groups began a breeding program and reintroduced th...
The largest North American land bird was also once extinct in the wild. Lead ammunition is believed to be the main driver in the decline of the California condor. But breeding programs and reintroduction have given bird enthusiasts hope, and today more than 500 of the birds live in the wild or in captivity. California condors can be found in northe...
The U.S. FWS's Threatened & Endangered Species System track information about listed species in the United States.
Scientific NameCommon NameFamilySpecies GroupGuatemalan Fir (=pinabete)PinaceaeConifers and CycadsLarge-fruited sand-verbenaNyctaginaceaeFlowering PlantsNo common nameMalvaceaeFlowering PlantsKo`oloa`ulaMalvaceaeFlowering PlantsVulnerable, Endangered and Critically Endangered species are considered to be threatened with extinction. The IUCN Red List will be updated with thousands of new species assessments and reassessments on Monday 11 December 2023.
For every county in the United States, the map below shows information on all the animals and plants protected under the U.S. Endangered Species Act as threatened or endangered.
Threatened & Endangered - USDA Plants Database
