Along a nine-mile stretch of river between two waterfalls in the Australian rainforest lives a tiny fish that’s been there for millions of years, hiding between rocks along the riverbank by day and ...

Alexander the Great's empire spanned much of the known world, but historians are still debating whether he knew about the ...

The admirable little red-bellied toad is the size of a thumb, but it has achieved giant feats: In 2014, it prevented the ...