@CNN: A 50,000-year-old bone fragment discovered in a Russian cave represents the first-known remains of a child that had a Neanderthal mother and a Denisovan father, according to a new study https://t.co/5jvGYvdh9J https://t.co/LqumRIyLKp

@CNN: A 50,000-year-old bone fragment discovered in a Russian cave represents the first-known remains of a child that had a Neanderthal mother and a Denisovan father, according to a new study https://t.co/5jvGYvdh9J https://t.co/LqumRIyLKp