These images are of a tube-shaped bead made of bone that is about 12,940 years old. The bead was discovered at Wyoming’s La Prele Mammoth site by UW archaeology Professor Todd Surovell and his ...

The beads, which are the oldest known iron artifacts in the world, were crafted roughly 2,000 years before Egypt's Iron Age. In 1911, nine tube-shaped beads were excavated from an ancient cemetery ...

Highly parallel labeling of many long DNA molecules was achieved by including a large number of distinct barcoded beads in a single tube, wherein each bead type holds many copies of the same ...