A recent examination of ancient dna has shed new light on the relationship between humans and neanderthals, potentially contradicting a previously believed "love story". The dna analysis has also revealed information about denisovan dna and its impact on human immunity, as well as new insights into neanderthal migration and the origins of europe's population. The findings appear to add complexity to the understanding of human and neanderthal interactions, although the exact nature of these interactions is still unclear.