Some extinct animals are neither dinosaur nor mammal. Learn about trilobites and other extinct life in this section.
FeaturedTop 10 Extinct Animals
Learn more about the top 10 most mysterious creatures to disappear from the earth.
Is the Mexican grizzly bear extinct?
The Mexican grizzly bear is presumed extinct, and the reason for its demise is pretty unfortunate. Learn more about its extinction at HowStuffWorks. See more »
Should we bring extinct species back to life?
De-extinction is a controversial topic. Find out the pros and cons of bringing extinct species back to life at HowStuffWorks. See more »
How did passenger pigeons become extinct?
The last passenger pigeon died in 1914 -- but just how did passenger pigeons become extinct? Get the answer at HowStuffWorks. See more »
How were tarpans different from domestic horses?
Modern tarpans are just genetic recreations of the extinct wild horses. Find out how tarpans were different from domestic horses at HowStuffWorks. See more »
How Woolly Mammoths Worked
Woolly mammoths have a few things to teach us about the fate of modern elephants. Learn more about woolly mammoths. See more »
Top 10 Extinct Animals
Want to know what the 10 most mysterious creatures to disappear from the earth are? Learn about the 10 most mysterious creatures at HowStuffWorks. See more »
How Megalodon Worked
The megalodon was born as big as an adult great white, grew to weigh as much as 7 Tyrannosaurus rex. Learn all about the megalodon. See more »
The Ultimate Pterodactyl Quiz
Was the extinct pterodactyl really ugly and evil? Take our quiz and learn about science's new view of the pterodactyl. See more »
Could scientists resurrect the dodo bird?
The dodo bird could be brought back from extinction thanks to the recent discovery of an intact dodo skeleton. Read about the recent dodo bird discovery. See more »
Loading more content
That Green Stuff at the Sushi Restaurant? Not Really Wasabi
Stunning Images Win 2016 International Drone Photography Contest
Weed Enthusiast Arrested for Keeping Human Brain Under His Porch
See More Headlines »