Penn Today highlights a study led by Sarah Tishkoff showing that Neanderthals inherited at least 6% of their genome from a now-extinct lineage of early modern humans.
Citations:
"Neanderthals Carried Genes Acquired From Ancient Interactions With ‘Cousins’ of Modern Humans." Penn Today, L F Wait, October 13, 2023.
S Tishkoff, et al. "Diverse African Genomes Reveal Selection on Ancient Modern Human Introgressions in Neanderthals," Current Biology.