'Ghost' human ancestor discovered in West Africa - BBC News
https://www.bbc.com/news/science-environment-51508616A mitochondrial genetic divergence proxy predicts the reproductive compatibility of mammalian hybrids
https://royalsocietypublishing.org/doi/10.1098/rspb.2020.0690Earliest interbreeding event between ancient human populations discovered | UNews
https://unews.utah.edu/earliest-interbreeding-event/Scientists Find a Mysterious 'Ghost Lineage' In the DNA of West Africans | Discover Magazine
https://www.discovermagazine.com/planet-earth/genetic-traces-of-mysterious-human-lineage-detected-in-people-living-in“Super-archaics:" Meet the humans who may have mated with your ancestors
https://www.inverse.com/science/super-archaics-humans-who-may-have-mated-with-your-ancestors