An analysis of the high-quality nuclear genomes previously published from three Neanderthals and one Denisovan shows that these extinct hominins were polymorphic for ABO blood groups and shared blood group alleles — different versions of the same gene — recurrent in modern sub-Saharan populations. Condemi et al. analyzed the blood types of Neanderthals and Denisovans by looking at their DNA. Image credit: CNRS. Neanderthals are a human...
