Study shows changes in anatomy would have made walking easier without reducing muscles for climbing in early hominins
(PHYSorg.com Archaeology & Fossils)

An international team of researchers has found evidence that suggests evolutionary changes in anatomy would have made walking more economical without reducing utility of muscles for climbing in early hominins. In their paper published in Proceedings of the National Academy of Sciences, the group describes studying bones and fossils from human ancestors and how they fit together to determine their walking and climbing abilities.