Are the descriptions of war passed down by ancient historians accurate? A site in Sicily provided a rare chance to fact-check stories told about two battles from more than 2,400 years ago.
CT scan of a catshark hatchling head. Note the ridged scales.
Rory Cooper, Kyle Martin & Amin Garbout/Natural History Museum London
Toothaches and root canals loom large in the collective memory and the whine of a dentist’s drill conjures unpleasant memories for most. Tooth decay and cavities most commonly affect the enamel that protects…