An IUCN Red List Critically Endangered 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 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.
Eisentraut's striped mouse or Eisentraut's hybomys is a species of rodent in the family Muridae. It is found only in Cameroon. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss.
The Komodo rat is a species of rodent in the family Muridae endemic to the surrounding islands of Flores in Indonesia, and formerly Flores itself. Its natural habitat is subtropical or tropical dry forests.It is threatened by habitat loss. It is thought to prefer open habitats. It has a body mass of around 100–200 grams (0.22–0.44 lb).
The Mussau monarch, also known as the white-breasted monarch, is a species of bird in the family Monarchidae. It is endemic to the Bismarck Archipelago of Papua New Guinea. Its natural habitats are subtropical or tropical moist lowland forests and rural gardens. It is threatened by habitat loss.
The Kilombero weaver is a species of bird in the family Ploceidae. It is endemic to Tanzania.
The Canarian shrew is a species of mammal in the family Soricidae. It is endemic to the Canary Islands, specifically the eastern islands of Lanzarote, Fuerteventura, Lobos, and Mount Clara. It used to be found on Graciosa, Canary Islands and Alegranza. Its natural habitat is subtropical or tropical dry shrubland. It is threatened by habitat loss.
The desperate shrew is a species of mammal in the family Soricidae. It is endemic to Tanzania. Its natural habitat is subtropical or tropical moist montane forests.
The montane white-toothed shrew is a species of mammal in the family Soricidae. It is found in Kenya, South Sudan, Tanzania, and Uganda. Its natural habitats are subtropical or tropical moist montane forest and subtropical or tropical seasonally wet or flooded lowland grassland. It is threatened by habitat loss.
The Cretan shrew is a species of mammal in the family Soricidae. It is endemic to the island of Crete, Greece. Its natural habitat is temperate shrubland, and the animal is threatened by habitat loss. It is found in the mountainous highlands of Crete, having been displaced from lower altitudes by the lesser white-toothed shrew.
The jungle shrew is a species of mammal in the family Soricidae endemic to Sri Lanka. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
The moon forest shrew is a species of mammal in the family Soricidae. It is found in Burundi, Rwanda, and Uganda. Its natural habitat is subtropical or tropical moist montane forests.
The Nicobar flying fox is a species of flying fox in the family Pteropodidae. It is endemic to India. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical swamps. It is threatened by habitat loss due to forest clearing.
The Sakeji horseshoe bat is a species of bat in the family Rhinolophidae. It is endemic to Zambia. Its natural habitats are subtropical and tropical dry and moist lowland forest, and moist savanna. It is threatened by habitat loss. It was discovered in 2000.
Koslov's pika or Kozlov's pika is a species of mammal in the family Ochotonidae. It is endemic to China. Its natural habitat is tundra. It is threatened by habitat loss. Kozlov's pika are herbivores, they are known as "ecosystem engineers" as they're known to promote diversity of different plants species. Specifically, this species of Pikas has been enlisted as "endangered" in China. Kozlov Pikas are estimated to be within the Northern edge of the Arkatag Range in China.
Elaphoidella jeanneli is a species of harpacticoid copepod in the family Canthocamptidae. It is found in Europe.
Thermochoria is a genus of dragonfly in the family Libellulidae. It contains only two species:
The San Felipe hutia, also known as the little earth hutia, is small, critically endangered, rat-like mammal found on the small island of Cayo de Juan Garcia off the southwest coast of Cuba. It was discovered in 1970 and is possibly extinct. Little is known about the species, except that it lives in swamps and coastal mangrove forests. It is a member of the hutia subfamily (Capromyinae), a group of stout rodents native to the Caribbean that are mostly endangered or extinct.
The jackass shrew is a species of mammal belonging to the Soricidae family. It is endemic to Turkey. Its natural habitat is rocky areas.
