This week, reassessing the age of the ‘Broken Hill skull’, and unearthing evidence of an ancient forest near the South Pole.In this episode:01:25 A skull’s place in historyAfter nearly a century scientists believe they’ve finally pinned down an age for the ‘Broken Hill skull’ hominid specimen. Research Article: Grun et al.07:44 Research HighlightsA simple way to detect early signs of cancer, and 3D printed soft brain implants. Research Highlight: A blood test finds deadly cancers before symptoms start; Research Article: Yuk et al.09:51 Ancient Antarctic rainforestDigging deep below the sea-floor, researchers have uncovered evidence of a verdant forest that existed on Antarctica around 90 million years ago. Research Article: Klages et al.15:47 Research HighlightsWalking more, regardless of the intensity, may improve health. Research Highlight: More steps a day might keep the doctor awaySubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. For information regarding your data privacy, visit acast.com/privacy