Endangered animal categories, definitions
Types are categorized by the IUCN Red List into 9 groups, defined with requirements such as price of decline, population size, location of geographical circulation, as well as degree of populace and also circulation fragmentation. There is a focus on the reputation of applying any type of criteria in the absence of top quality information including uncertainty and potential future risks, “so long as these can reasonably be sustained”.
- Extinct (EX) — Extinct species no longer exist. After exhaustive research, scientists around the world agree that there isn’t a single living individual of the species on the planet. Interestingly, 99 percent of all species that ever graced the Earth over the past five billion years have gone extinct
- Extinct in the wild (EW) — Species that only survive in captivity, cultivation, or outside their native range are deemed “extinct in the wild.” For example, if only 10 individuals of a rare bird are left, and they all live in zoos or on a single nature preserve, the IUCN would classify the species as extinct in the wild. Read more and see an extinct in the wild species list here.
- Critically endangered (CR) — Critically endangered species are on the brink of becoming extinct or extinct in the wild but have not yet met the criteria for either category.
- Endangered (EN) — Endangered species are at a very high risk of becoming extinct in the wild or extinct. For an animal to be added to the category, it must meet specific criteria regarding population or habitat decline.
- Vulnerable (VU) — Vulnerable species meet at least one of the five Red List criteria. They’re considered to be at high risk of human-caused extinction if conservationists don’t intervene. For the IUCN to add a taxon to the Vulnerable animals list, it must meet specific criteria regarding population or habitat decline
- Near threatened (NT) — A species is considered Near Threatened when it doesn’t qualify as Critically Endangered, Endangered, or Vulnerable, but scientists believe it will reach one of those levels in the near future
- Least concern (LC) — Species that fall into the Least Concern category are not presently facing any population or habitat declines. See a least concern species list.
- Data deficient (DD) — Data deficient species lack enough information to properly categorize into one of the groups above
- Not evaluated (NE) — This species has not been evaluated for an IUCN categorization yet
Extinct Animals
Sarkastodon
Sarkastadon was one of the largest land mammal carnivores of all time!
Quagga
The quagga is a subspecies of plains zebra.
See all Extinct Animals.
Critically Endangered Animals
Bull and Terrier
Bull and Terriers were explicitly bred for bull-baiting, a savage blood sport where certain dog breeds would attack an angered bull tied to a pole.
Sarcosuchus
Sarcosuchus is a relative of present-day crocodiles.
See all Critically Endangered Animals.
Vulnerable Animals
Allosaurus
Differnt Lizard” or Allosaurus weighed around two tonnes that is almost equal to a car.
Elasmosaurus
Elasmosaurus is an extinct reptile species.
See all Vulnerable Animals.
Near Threatened Animals
Dinopithecus
The only species currently recognized of this ancient baboon is Dinopithecus ingens.
Allosaurus
Differnt Lizard” or Allosaurus weighed around two tonnes that is almost equal to a car.
Ichthyosaurus
Gave birth to live young instead of laying eggs like other reptiles
See all Near Threatened Animals.
Least Concern Animals
Arsinoitherium
Arsinoitherium was a twin-horned mammal that looked like a rhino but is more closely related to present-day elephants.
Thanatosdrakon
Thanatosdrakon was one of the largest pterosaurs that lived in South America.
Quagga
The quagga is a subspecies of plains zebra.
See all Least Concern Animals.
Not Evaluated Animals
Gigantopithecus
Some cryptozoologists think that Gigantopithecus survives to this day as "The Bigfoot."
Allosaurus
Differnt Lizard” or Allosaurus weighed around two tonnes that is almost equal to a car.
See all Not Evaluated Animals.