Discovered hominin bones similar to 'Lucy'

An analysis of six-million-year-old bones suggests that the species was the earliest known hominin to walk. The thighbones closely resemble those from early hominids like the famous ‘Lucy.’ "I had occasion to see the material about five years ago in Nairobi, and I was struck by the similarities – particularly between the femur and Lucy's femur," says Donald Johanson, Institute of Human Origins director and Lucy's discoverer. "This suggests that you don't immediately become a modern, efficient biped all at once. As is so often the case in the evolution of any mammal, it happens in stages, and it's interesting to see the sequence of those events."Article source: National Geographic