• When 900,000-year-old skulls were found at Yunxian in China, Homo sapiens was generally thought to have evolved in Africa at some time between 100,000 and 200,000 years ago (7 July, p 28).
• The genome-edited soybeans that are being grown commercially in the US this year were created using a genome-editing technique called TALEN (7 July, p 22).
• Ring the changes: chlorobenzene is composed of six carbon atoms in a hexagon, plus one chlorine atom and five hydrogen atoms (14 July, p 9).
