Episode 277 Chimps are an intelligent species, capable of using tools and developing culture - so why have humans surpassed them to such a huge extent? How is it that we are busy exploring space while chimps remain stuck in the Stone Age? It’s long been thought it’s because their culture doesn’t evolve cumulatively, but that assumption has just been challenged. Hear from Cassandra Gunasekaram, the lead author of a paper that shows chimp culture develops in a more complex way than we realised. We also hear from primatologists Andrew Whiten from the University of St Andrews and Andrea Migliano of the University of Zurich. How often do you check the calories of your meal, before ordering at a restaurant? In 2020 in the UK it became mandatory for many restaurants to print calories on their menus, as part of an anti-obesity campaign - the question is, has it been effective or a complete waste of time? We dig into new research and the results may surprise you. We also explore why 85 per cent of overweight or obese people who lose a significant amount of weight end up putting it all back on again within a year. In a Black Mirror-like development, computer scientists have managed to create simulated replicas of 1000 real people. These digital twins were created using the model behind ChatGPT and can accurately simulate their personalities. The method is surprisingly simple to recreate - so should we be worried? To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices

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