During the millions of years before the advent of humankind, all sorts of massive ... megafauna had the evolutionary freedom and the natural abundance to grow gargantuan in size. The earth truly ...

If you’ve ever seen an elephant or a giraffe up close, you know those animals can seem massive, but would you believe that ...

Fossilized teeth from two ancient megafauna suggest they roamed Brazil 3,500 years ago. The find “opens the door to rewrite South American history.” ...