Year in Review: New discoveries reshape debate over human ancestry
Relationships among early hominids disputed
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/12/YE_4.jpg?fit=860%2C460&ssl=1)
Australopithecus sediba walked awkwardly on two legs and had a small brain, fossils discovered in 2013 revealed.
Courtesy of L. Berger/Univ. of the Witwatersrand