By using this site, you agree to our Privacy Policy and our Terms of Use. Close

Some of my top picks:

Titanoboa, the biggest known snake to ever live

 

Giant Moa, which survived as recently as the 1500s

 

Thylacine/Tasmanian Tiger, survived until the 20th century

 

Woolly Rhinoceros, a resident of the more recent Ice Ages

 

Basilosaurus, a predatory whale 15-18 meters long