The bony signs of “horsemanship syndrome” point to riding in the region that is now Hungary, Romania and Bulgaria between 4,500 and 5,000 years ago.

Archaeologists are reconsidering their assumptions after discovering the 9,000-year-old remains of a young woman buried with a well-stocked big game hunting toolkit.

AAAS issues guidelines and implementing tools to inform human rights, aid groups, researchers and volunteers how best to use of location-based data in crisis zones.

With higher THC levels than typically found in wild plants at the time, the cannabis was probably used for its psychoactive properties.