Nature Podcast

00:48 The hidden cities of UzbekistanResearchers have uncovered the scale of two ancient cities buried high in the mountains of Uzbekistan. The cities were thought to be there, but their extent was unknown, so the team used drone-mounted LiDAR equipment to reveal what was hidden beneath the ground. The survey surprised researchers by showing one of the cities was six times bigger than expected. The two cities, called Tashbulak and Tugunbulak, were nestled in the heart of Central Asia’s medieval Silk Road, suggesting that highland areas played an important role in trade of the era.Research Article: Frachetti et al.Video: Uncovering a lost mountain metropolis09:32 Research HighlightsHow children's’ movements resemble water vapour, and why coastal waters may be a lot dirtier than we thought.Research Highlight: Kids in the classroom flow like water vapourResearch Highlight: Sewage lurks in coastal waters — often unnoticed by widely used test12:06 Watermarking AI-generated textA team at Google Deepmind has demonst