Other Extinct Animals
Some extinct animals are neither dinosaur nor mammal. Learn about trilobites and other extinct life in this section.
What Was the Biggest Dinosaur? Here Are the 4 Best Estimates
Utahraptor: The Salty Saga of a Killer Dinosaur
Nigersaurus: The 'Mesozoic Cow' With More Than 500 Teeth
All About the Megalodon, Shark Giant of Prehistoric Times
Meet Palaeophis Colossaeus, the Largest Sea Snake of All Time
Meet Gigantophis garstini, an Enormous Prehistoric Snake
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Bringing a species back from extinction might not be the stuff of sci-fi any longer.
On Sept. 7, 1936, Benjamin, the last known Tasmanian tiger, died in captivity at the Hobart Zoo in Tasmania, Australia. But there are those who believe this extinct species still walks the Earth.
By Wendy Bowman
Centuries later, the flightless bird is finally getting some cred.
By Robert Lamb
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Grizzly bears are usually associated with colder climates, so you might be surprised to learn that they've also called Mexico home.
The basic idea of "Jurassic Park" — minus the carnage — is both appealing and approaching reality. But reintroducing extinct species requires some careful consideration.
Hop in your time machine, set the clock back a few thousand years and meet some woolly wonders. They even have a few things to teach us about the fate of modern elephants.
Learn more about the top 10 most mysterious creatures to disappear from the earth.
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The megalodon was born as big as an adult great white and grew to weigh as much as 7 Tyrannosaurus rex. Learn all about the megalodon.
Although it may be long extinct, this quirky bird continues to amaze scientist. The latest discovery? An awesome “musket ball” weapon located on the tip of its wing structure. Could our world once again include this big, old flightless pigeon?