The thoracic spine is part of your spinal column and is composed of 12 bones that are stacked one upon another. The thoracic spine is located between your cervical and lumbar spines, and it serves ...

These artists -- whether sculpting in clay or sketching on paper -- rely on a detailed knowledge of anatomy to put muscle and flesh on fossil bones ... the cavity at the back of the skull ...

To get a picture of how Lucy's species, Australopithecus afarensis, moved, scientists compare fossils to the bones of modern humans, as well as to the anatomy ... Johanson back to Hadar the ...