Japan's Ryukyu Islands, which includes Okinawa, are the exclusive home to two rare mammals, the Amami rabbit and Ryukyu ...

A team of researchers spotted two teeth fossils of creatures living alongside dinosaurs who later turned out to be of human ancestors.

We started small by testing the method on rodent tooth enamel from animals with controlled diets in a specialised feeding experiment. It worked . From there, we moved on to the enamel of wild ...

The first step for researchers was to drill holes in two rat molars, exposing the interior of the tooth underneath. They exposed dentin, which is the harder-than-bone but softer-than-enamel tissue ...