This article is about the conservation designation itself. For lists of Critically Endangered species, see Lists of IUCN Red List Critically Endangered species.
Conservation status
by IUCN Red List category
Extinct
Extinct (EX)
Extinct in the Wild (EW)
(list)
(list)
Threatened
Critically Endangered (CR)
Endangered (EN)
Vulnerable (VU)
(list)
(list)
(list)
Lower Risk
Near Threatened (NT)
Conservation Dependent (CD)
Least Concern (LC)
(list)
(list)
Other categories
Data Deficient (DD)
Not Evaluated (NE)
(list)
Related topics
International Union for Conservation of Nature (IUCN)
IUCN Red List
NatureServe status
Lists of organisms by population
Comparison of Red List classes above and NatureServe status below
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Pygmy three-toed sloth, a species of sloth with a conservation status of Critically Endangered.
An IUCN Red List Critically Endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild.[1] As of December 2023, of the 157,190 species currently on the IUCN Red List, 9,760 of those are listed as Critically Endangered, with 1,302 being possibly extinct and 67 possibly extinct in the wild.[2]
The IUCN Red List provides the public with information regarding the conservation status of animal, fungi, and plant species.[3] It divides various species into seven different categories of conservation that are based on habitat range, population size, habitat, threats, etc. Each category representing a different level of global extinction risk. Species that are considered to be Critically Endangered are placed within the "threatened" category.[4]
As the IUCN Red List does not consider a species extinct until extensive, targeted surveys have been conducted, species that are possibly extinct are still listed as Critically Endangered. IUCN maintains a list[5] of "possibly extinct" and "possibly extinct in the wild" species, modelled on categories used by BirdLife International to categorize these taxa.
^"IUCN RED LIST CATEGORIES AND CRITERIA" (PDF). 2000-02-09. Retrieved 2018-02-06.
^"IUCN Red List of Threatened Species". IUCN. Retrieved January 19, 2024.
^"What is The IUCN Red List?". IUCN Red List. Retrieved August 13, 2020.
^"Endangered Species". National Geographic. March 17, 2011. Retrieved August 13, 2020.
An IUCN Red List CriticallyEndangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature...
conservation status Category:IUCN Red List criticallyendangered species Lists of IUCN Red List endangered species Lists of IUCN Red List vulnerable species...
Extinct in the wild (EW): 2 species Criticallyendangered (CR): 203 species Endangered (EN): 505 species Vulnerable (VU): 536 species Near threatened...
Extinct in the wild (EW): 5 species Criticallyendangered (CR): 223 species Endangered (EN): 460 species Vulnerable (VU): 798 species Near threatened...
"definitely endangered" (children not speaking), "severely endangered" (only spoken by the oldest generations), and "criticallyendangered" (spoken by...
Extinct in the wild (EW): 2 species Criticallyendangered (CR): 196 species Endangered (EN): 382 species Vulnerable (VU): 411 species Near threatened...
Extinct in the wild (EW): 1 species Criticallyendangered (CR): 195 species Endangered (EN): 343 species Vulnerable (VU): 608 species Near threatened...
Extinct in the wild (EW): 2 species Criticallyendangered (CR): 545 species Endangered (EN): 848 species Vulnerable (VU): 670 species Near threatened...
orangutan (Pongo abelii) in the CriticallyEndangered category and the Bornean orangutan (Pongo pygmaeus) in the Endangered category. The 2008 Red List was...
animal species at risk, using categories: least concern, endangered, criticallyendangered, near-extinct and extinct. The second edition of the Red List...
Extinct in the wild (EW): 13 species Criticallyendangered (CR): 581 species Endangered (EN): 507 species Vulnerable (VU): 879 species Near threatened...
terms "endangered species" and "threatened species" with particular meanings: "Endangered" (EN) species lie between "Vulnerable" (VU) and "Critically Endangered" (CR)...
language endangerment between "safe" (not endangered) and "extinct": Vulnerable Definitely endangered Severely endangeredCriticallyendangered The following...
language endangerment between "safe" (not endangered) and "extinct": Vulnerable Definitely endangered Severely endangeredCriticallyendangered Lists of...
other conservation threats, has brought most of the species to criticallyendangered status, at the edge of extinction. Acipenseriform fishes appeared...
spoken in Canada around 2010. Vulnerable Definitely endangered Severely endangeredCriticallyendangered Phonological Process: Patterns that young children...
Conservation of Nature (IUCN). It includes vulnerable (VU), endangered (EN), criticallyendangered (CR), and recently extinct (EX) species. It excludes near...
of "fish and wildlife." The Endangered Species Preservation Act was repealed by the Endangered Species Act. The Endangered Species Conservation Act of...
snake was labelled criticallyendangered on the IUCN Red List of Threatened Species. It also was placed on the list of Brazil's endangered animals. The island...
understand it, they do not speak it to children or among themselves" Criticallyendangered - "the youngest speakers are grandparents and older, and they speak...
understand it, they do not speak it to children or among themselves" Criticallyendangered – "the youngest speakers are grandparents and older, and they speak...
threatened is generally used to refer to the three categories (criticallyendangered, endangered, and vulnerable), while vulnerable is used to refer to the...
Global Information
