Largest Extinct Animals In The World. The largest subspecies, smilodon populator, could reach 400 kg in weight, three meters in length, and 1.4 meters tall at the shoulder. The world has been blessed with some of the most beautiful, unique and rare species of birds, mammals and insects.
It can span in length up to 35 ft. The largest birds lived around 25 million years ago, according to fossil evidence. Characterized by their grandeur physical appearance, they evolved some 400,000 years ago during the pleistocene epoch.
(10.6 m) and stand up to 13 ft.
Characterized by their grandeur physical appearance, they evolved some 400,000 years ago during the pleistocene epoch. Like the steppe mammoth, the megalania was no match for human hunters. Interestingly enough, some scientists believe that megalania was venomous so its bite was extremely deadly. The world has been blessed with some of the most beautiful, unique and rare species of birds, mammals and insects.