Shannon Tushingham

More than 8,500 years ago, a group of people used a rock shelter at the confluence of the Palouse and Snake Rivers as a base camp. When rediscovered in the early 1950s, the shelter amazed scientists, including Washington State University archeologist Richard Daugherty, with its wealth of artifacts—and the age of its human remains. Named […]

A team of scientists including researchers from Washington State University has shown for the first time that nicotine residue can be extracted from plaque, also known as “dental calculus”, on the teeth of ancient tobacco users. Their research provides a new method for determining who was consuming tobacco in the ancient world and could help […]