Wyatt Mortenson went viral on Instagram in September as he shared a clip to his account, aptly named @thebuffalorider, of ...

pterosaurs and other giant reptiles roamed Earth—with many dwarfing the largest terrestrial animals alive today. The scientists estimated the body size of this particular species, which has no ...

So they are unique as the first flyers but also among the flying animals. Though their wing span extended far before the ...

Beelzebufo ampinga, the so-called "devil frog," may be the largest frog that ever lived ... These largely terrestrial frogs may have been as ill-tempered and aggressive as their living relatives ...

With its iconic appearance and historic popular appeal, the giraffe is the world's tallest living terrestrial animal and the largest ruminant. Recent years have seen much-needed new research ...