Australopithecus’ ancient human relatives’ walk like humans, but climb like monkeys’

Lordosis is (among other things) forward flexion of the lumbar spine, and of the lumbar spine, and is usually used to denote the major adaptations of bipedalism, and bipedal walking.

With a more complete spine and excellent fossil condition, new study finds that lordosis A. sediba That’s actually clearer than the others Australopithecus that we have found and that the spinal curvature is only surpassed by the curvature found in the spine of a 1.6 million year old Turkana boy, gay guest of honor From Kenya, and in some modern humans.

The presence of lordosis and other features of the spine is an obvious adaptation to walking on two legs, but other features, such as a large, upward-pointing transverse process, suggest strong muscles of the trunk, perhaps for climbing and climbing. live in the living space. ,” said Gabriel Russo, professor of evolutionary anthropology at Stony University. Brooke and co-author of the new study, “Trees.”

A strong ascending transverse process or transverse process usually refers to strong pectoral muscles, as seen in great apes. “When combined with other parts of the anatomy of the torso, that is indicative A. sediba “A clear adaptation for climbing,” said Shahid Nala, a professor at the University of Johannesburg and the University of Wits who specializes in the rib cage and researcher on the new study.

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