Two 7,000-year-old mummies belong to a previously unknown human lineage that remained isolated in North Africa for thousands of years, a new study finds.
The mummies are the remains of women who once lived in the "Green Sahara," also known as the African Humid Period. Between 14,500 and 5,000 years ago, the now-inhospitable Sahara was a humid and verdant savanna, home to humans who hunted and eventually herded animals alongside lakes and rivers.
