An inscription on the 1,400-year-old tomb shows the dead man, who was posthumously declared emperor, was buried as a duke.

Fossilized tree analysis finds a single massive earthquake may have rocked what is now Seattle around 1,100 years ago rather than several smaller quakes, and that another equally powerful one could hit the city in the future.

A new patch, which sticks to the inner lining of the cheek like an octopus sucker, effectively delivered two drugs in dogs and passed safety tests in humans.

A new X-ray analysis of dinosaur feathers shows that their chemical structure is similar to that of modern bird feathers.

The cause of the boy's lump is unknown, although doctors suspect it could be an unusual symptom of a neural tube defect.

More orcas have died entangled in fishing gear in Alaska this year than in previous years, which may be linked to a "new behavior" where they feed in front of ascending fishing nets.