Support WBUR'Minibrains' With A Neanderthal Gene Offer Hints About Human EvolutionPlay03:45Download AudioJon HamiltonFebruary 12, 2021 ShareUniversity of California, San Diego scientist Alysson Muotri's lab grew brain organoids from human stem cells that swapped a developmental gene from Neanderthals for the human version. (Muotri Lab/UC San Diego)