Polar bears have adapted perfectly to their Arctic home. This includes not only the thick layer of blubber and the warm fur - it also has to be unwashed and greasy, as a study shows. The post Oily ...

A tyrannosaur that lived 70 million years ago in Alaska wasn't nearly as big as Tyrannosaurus rex, but it wasn't as small as ...

Whether you're looking for the most beautiful city closer to home or somewhere further-flung, here's where to go. Best tourist destination: Sydney, Australia Underrated hidden gem: Tbilisi ...