Extinct animals are those species which are no longer living. This group includes prehistoric animals like dinosaurs and ice-age mammals, as well as moden species like the Dodo.
It isn't hard to imagine the world full of dinosaurs, even though these extinct animals haven't walked the earth for millions of years. Learn all about dinosaurs, including early dinosaur discoveries, dinosaur fossils, and dinosaur extinction. See more »
Learn about birds that are no longer living, from the earliest species, Archaeopteryx, to more modern species like the Moa. See more »
While Mammoths and Saber Toothed Tigers died out long ago, modern mammals are increasingly at risk of extinction due to human intervention. Explore some species that are no longer with us. See more »
Some extinct animals are neither dinosaur nor mammal. Learn about trilobites and other extinct life in this section. See more »
Saber-tooth cats have long been likened to tigers, but they aren't tigers at all. While they share some physical traits and hunting practices with tigers, saber-tooth cats are also quite different.
On a typical day near the end of the Cretaceous Period, more than 65 million years ago, a bloody battle rages along the bank of a shallow river in what is now South Dakota. Learn all about tyrannosaurus Rex behavior.
