The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature (IUCN) and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
The São Tomé shrew is a white-toothed shrew about 3.0 in (7.6 cm) long found only on São Tomé Island, São Tomé and Príncipe. It is listed as a critically endangered species due to habitat loss and a restricted range. It was discovered in 1886. The population continues to decrease, making these animals rare. It is found only on São Tomé Island, a small island that is actually a shield volcano that rises out of the Atlantic Ocean.
The Rumpi mouse shrew is a Myosoricinae shrew found only on the Rumpi Hills, Cameroon. It is listed as a critically endangered species due to habitat loss and a restricted range.
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.
The grey long-eared bat is a fairly large European bat. It has distinctive ears, long and with a distinctive fold. It hunts above woodland, often by day, and mostly for moths. In captivity, it has also been recorded to eat small lizards. It is extremely similar to the more common brown long-eared bat, and was only distinguished in the 1960s, but has a paler belly.
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 Cameroon soft-furred mouse or Cameroon praomys is a species of rodent in the family Muridae. It is found in Cameroon and Equatorial Guinea. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss.
The gray-tailed narrow-headed rat is a species of rodent in the family Muridae. It is found only in Ethiopia. Its natural habitats are subtropical or tropical moist montane forests, subtropical or tropical high-elevation shrubland, and subtropical or tropical high-elevation grassland. It is threatened by habitat loss.
Phillips's gerbil is a species of rodent found in Ethiopia, Kenya, and Somalia. Its natural habitat is subtropical or tropical dry shrubland.
The charming thicket rat is a species of rodent in the family Muridae. It is described as data deficient as Thamnomys schoutedeni. It is found in Democratic Republic of the Congo, Rwanda, and Uganda. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss.
Chapmannia gracilis is a species of flowering plant in the family Fabaceae. It is endemic to north-central and northeastern Socotra in Yemen. Its natural habitat is subtropical or tropical dry forests.
Chapmannia sericea is a species of flowering plant in the family Fabaceae. It is endemic to western and southwestern Socotra in Yemen. Its natural habitat is rocky areas.
Chapmannia tinireana is a species of flowering plant in the family Fabaceae. It is endemic to north-central Socotra in Yemen. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
Villa's gray shrew is a shrew native to northeastern Mexico, where it is called musaraña.
Bombina microdeladigitora is a species of toad in the family Bombinatoridae endemic to Guangxi, Hubei and Sichuan in China. It is commonly known by several names including Guangxi firebelly toad, Hubei firebelly toad, large-spined bell toad, Lichuan bell toad, small-webbed bell toad, and Yunnan firebelly toad. Its natural habitats are subtropical or tropical moist montane forests, temperate forests, rivers, swamps, and freshwater marshes. It is threatened by habitat loss.
The mountain frog, or red and yellow mountain frog, is a species of frog in the family Limnodynastidae. The scientific name comes from the Gubbi Gubbi language of southern Queensland, ‘kunda’ meaning mountain and ‘gungan’ meaning frog.
The Kern Plateau salamander is a species of salamander in the family Plethodontidae, endemic to California, in Tulare and Inyo, and Kern Counties in the western United States.
The Aldabra flying fox is a species of megabat in the genus Pteropus. It is endemic to the Aldabra Atoll in the Seychelles, like Chaerephon pusilla, though the latter may be the same species as the little free-tailed bat.
A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction improve.
