A nearly complete skull fossil found in Egypt has revealed a new species of Hyaenodonta, an apex carnivore that mysteriously went extinct about 25 million years ago.

The distance between the highest points of the impacted lower third molar tooth to the occlusal line. Angulation of the third molar refers to the angle formed between dental long axis and occlusal ...

The 43-year-old - known as ‘The Molar Explorer’ - has become one of only a handful of women to cross Antarctica solo. She said: "It's been really brutal. Originally, I wanted to do it in 50 days.