Proteins that make amyloids can bend and twist into a variety of shapes in the process. Two new papers, in the March 9 Science and March 8 PNAS online, describe structures for a cylindrical oligomer ...

(CNN) — Archaeologists have unearthed the oldest known wooden structure, and it’s almost half a million years old. The simple structure — found along a riverbank in Zambia — is made up of two ...