Ghost lineage in Africa contributed to human DNA

Recent genetic research has revealed that an extinct human lineage in Africa, similar to how Neanderthals left their mark on non-African populations, contributed significantly to the DNA of modern humans. This 'ghost lineage' with no living descendants played a substantial role in shaping human genetic diversity, particularly among African populations. The discovery expands our understanding of human evolution beyond previously known archaic human interactions like Neanderthal interbreeding.