A says the of humans is in Botswana. Researchers said they used DNA to find out where humans came from. They believe all our are in a of northern Botswana. Humans were there 200,000 years ago. They lived there for at 70,000 years and then moved around the African . They then started migrating to Europe and Asia. Researcher Professor Vanessa Hayes, from the University of Sydney, said: "We've known for a time that modern humans originated in Africa 200,000 years ."
The researchers pinpointed an area called Okavango as where come from. There used to be a big there but it is now flats. People had water, hunting and . Scientists analyzed DNA from 200 people who live near the area today. They are from the Khoisan , who live in modern-day South Africa and Namibia. They had a lot of called L0. Professor Hayes explained why L0 is . She said: "Every time a migration occurs, that migration event is recorded in [L0 and] DNA as a time-stamp.... Everyone walking around ...comes from this region."