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. As of 2021, of the 120,372 species currently tracked by the IUCN, there are 8,404 species that are considered to be critically endangered.
Molluscs
Arthropods
Chordates
Amphibians
Mammals
Reptiles
Turtles and tortoises
- Hawksbill sea turtle
- Kemp's ridley sea turtle
- Bog turtle
- Flattened musk turtle
- Mojave Desert tortoise
Lizards
- Spondylurus semitaeniatus
- Spondylurus sloanii
- Spondylurus monitae
- Spondylurus magnacruzae
- Spondylurus culebrae
- Spondylurus spilonotus
- Anolis roosevelti
Fish
- Great hammerhead
- Sand tiger shark
- School shark
- Scalloped hammerhead
- Smalltail shark
- Oceanic whitetip shark
- Largetooth sawfish
- Devil's Hole pupfish
- Alabama cavefish
- Woundfin
- Moapa dace
- Duskytail darter
- Nassau grouper
- Spring pygmy sunfish
- Alabama sturgeon
- Delta smelt
- Marbled darter
- Consauga logperch
- White River spinedace
- Pygmy sculpin
- Roundnose grenadier
- Bonytail chub
Birds
- California condor
- Ivory-billed woodpecker
- Bryan's shearwater
- Newell's shearwater
- Guam rail
- Laysan duck
- ʻAkekeʻe
- Maui nukupuʻu
- Kauaʻi nukupuʻu
- Palila
- Olomaʻo
- Puaiohi
- Maui ʻakepa
- ʻAkikiki
- ʻAkohekohe
- Oʻahu ʻalauahio
- Maui parrotbill
- ʻŌʻū
- Nihoa finch
References
- "IUCN Red List Categories and Criteria" (PDF). 2000-02-09. Retrieved 2018-02-06.
- "IUCN Red List of Threatened Species". IUCN. Retrieved November 17, 2021.
- "IUCN Red List of Threatened Species".
- https://www.iucnredlist.org/species/41712/178589687
- "IUCN Red List of Threatened Species".