Early Humans Interbreeding With Neanderthals More Common Than Previously Thought While other scientists had thought that interbreeding between primitive humans and Neanderthals only happened once, a new study said otherwise. Researchers explained that about 75,000 years ago, the two species interbred several times. by Julia Manuel
Healthy Living/Wellness Neanderthal DNA Linked To Smoking Addiction, Depression Risks by Katrina Pascual
Science DNA found in early modern human fossil shows evidence of interbreeding with Neanderthals by Jim Algar