Broad, fan-shaped bones on either side, called the iliac blades, curve to form a pelvic basin. This basin helped support her internal organs and entire upper body as she moved. Lucy: arm bones ...

This image shows the upper and lower limb bones of those adults found in Sima de los Huesos, Atapuerca, Spain. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...

It might seem like common sense that we can’t live without our arms, but it’s worthwhile to understand how the connective tissue, muscular attachments, and bones of the upper body are ...