The origins and earliest branches of primate evolution are clearer and more ancient by 10 million years than previous studies estimated, according to a study featured on the cover of the Jan. 23 print edition of the Proceedings of the National Academy of Sciences.

During the nineteenth century, Science was transformed from a hobby for leisured gentlemen to an essential influence on the lives of most people in the western world. The discoveries of physicists were lighting the cities and providing new sources of power.