As the Winter Olympics in Pyeongchang draws to a close, questions abound. The most common is "so what?" After all the planning, the building and the spending, what legacy will the event leave? Tracey J Dickson says the answers are important, since policymakers and politicians - especially those in developing countries which are increasingly hosting big sporting events - need to clearly demonstrate that hosting sporting events is a better investment than in other public goods like education and health.

The Neanderthal, a human ancestor that became extinct around 40,000 years ago, has largely been dismissed by scientists as uncultured and behaviourally inferior to Homo sapiens. Chris Standish and Alistair Pike explain how a new find ought to change this view: the discovery proves that Neanderthals were able to create cave art.