IT was an otherwise ordinary day in 2015 when Viviane Slon had her eureka moment. As she worked at her computer, the results revealed the sample she was examining contained human DNA. There was nothing so unusual about that in itself: at the time, the ancient DNA (aDNA) revolution was in full swing, and surprising new insights about our ancestors were being gradually unveiled. But Slon’s sample wasn’t from human remains – it was just dirt from a cave floor. That immediately told her she was onto something big…
This article first appeared online in New Scientist on 31 December 2024. To continue reading, click here (paywall).
IN an institute in Germany, scientists are growing “Neanderthalised” human brain cells in a dish. These cells form synapses and spark as they would have done in a living Neanderthal as she (they are female cells) foraged or breastfed or gazed out of a cave mouth at dusk. That is the spine-tingling opening gambit of a book co-authored by one of the directors of the institute, Johannes Krause, and the information that sets it apart from a host of popular science books that attempt to predict humanity’s future based on our evolutionary past…