• Cold facts: An Arctic fox travelled 3506 kilometres during a 76-day polar marathon (6 July, p 16).
• We’re shaken: The epicentre of an earthquake is on Earth’s surface above its focus (13 July, p 7).
Letter: For the record – 3 August 2019
Published 31 July 2019
Issue no. 3241 published 3 August 2019
