The term that describes animals that are extinct is "extinction." Extinct animals are species that no longer exist anywhere on Earth, meaning there are no living members of that species remaining. This can occur due to various factors, including habitat loss, climate change, overhunting, and competition from invasive species. Extinction is a natural part of the evolutionary process; however, human activities have accelerated the rate of extinction dramatically. Conservation efforts aim to protect endangered species and restore habitats to prevent more animals from becoming extinct.