| A team led by Brigitte Senut and Martin Pickford discover Orrorin tugenensis, one of the earliest species on the human family tree that lived about 6 million years ago, in the Tugen Hills, Kenya A team led by Brigitte Senut and Martin Pickford discover Orrorin tugenensis, one of the earliest species on the human family tree that lived about 6 million years ago, in the Tugen Hills, Kenya |
