Breaking News English

A new study [claims / clams] that the origin of modern humans is in Botswana. The study is published [in / on] the journal 'Nature'. Researchers in the study said they used DNA to find out where modern humans came [for / from] . The researchers believe we all have [roots / shoots] in a region of northern Botswana, south [off / of] the Zambezi River. Humans were there 200,000 years [since / ago] . They lived there for at [least / last] 70,000 years before they moved around the African continent. They then started migrating to [what / that] is now Europe and Asia. Researcher Professor Vanessa Hayes, from the University of Sydney in Australia, said: "We've known for a [length / long] time that modern humans originated in Africa [roughly / rough] 200,000 years ago."

The researchers [pointed / pinpointed] an area called Okavango as being the place we come from. There used to be a [enormous / huge] lake there but it is now salt [flats / apartments] . The people had [excess / access] to water, hunting and farmland. Scientists [analysis / analyzed] DNA samples from 200 people who live near the area today. They are from the Khoisan people. The Khoisan now [alive / live] in modern-day South Africa and Namibia. They had a lot of DNA called L0, which is the oldest form of DNA [known / knowing] to be inside humans. Professor Hayes [explanation / explained] why L0 is important. She said: "Every time a new migration [occur / occurs] , that migration event is recorded in our [L0 and] DNA as a time-stamp.... Everyone walking around today...comes from this [region / regional] ."