The IUCN Red List of threatened species shows if an animal, plant, or fungi species is either least concern, near threatened, vulnerable, endangered, critically endangered, extinct in the wild, or extinct. They assess species to these depending on how it's doing in their natural habitats.
Data deficient is a category where they don't have information for that species.
Least concern is a category where a species is not endangered or threatened, so it is not facing risk in the wild.
Near threatened is a category where species are likely to become threatened in the near future.
Vulnerable is a category where species are facing a high risk of extinction in the wild.
Endangered is a category where species are facing a very high risk of extinction in the wild.
Critically endangered is a category where species are facing an extremely high risk of extinction in the wild.
Extinct in the wild is a category where species no longer live in the wild so they only live in cultivation/captivity.
Extinct is a category where species no longer exists in the wild or captivity/cultivation.
A Javan Rhino almost completely submerged in water on the island of Java, Indonesia.