(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 ...

The crystal structure of a polypeptide chain fragment from the surface layer protein tetrabrachion from Staphylothermus marinus has been determined at 1.8 Å resolution. As proposed on the basis of the ...