Millions of years ago, giant rhinoceroses roamed the grasslands that stretched from Ukraine to Siberia. One species, ...

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

After a century-long absence, the elusive South American tapir has reemerged, sparking hope and excitement among ...

Neanderthals, Denisovans, Homo erectus have all vanished, leaving just Homo sapiens. Us. And it looks like we humans may ...

Flying and marine animals are relatively free to follow these shifting niches. Birds and butterflies are two examples. New ...