What do you call animals when they already extinct?

Extinct animals are animal species that no longer exist. They are sometimes called prehistoric animals, especially when they existed millions or even hundreds of millions of years ago. Some examples of extinct animals include:

- Dinosaurs, such as the Tyrannosaurus Rex and Triceratops

- Mammoths and Mastodons, large, elephant-like animals

- Saber-toothed cats, such as Smilodon

- Dodo birds, a flightless bird from Mauritius

- Tasmanian tigers, a marsupial from Australia