12,300-year-old tobacco seeds discovery
Lindsey Daub, a Far Western Anthropological Research Group staff archaeologist, works at an archaeological dig site on the Utah Test and Training Range, July 13, 2016. Daub and her colleagues found tools, charcoal, waterfowl bone fragments and tooling flakes, which provide evidence of wetlands and human presence in the area more than 12,000 years ago. (U.S. Air Force photo by Todd Cromar)