Add Yahoo as a preferred source to see more of our stories on Google. Because our ancestors didn’t exactly have smartphones and social media to track where they were going, we need their bones (like ...

They compared measurements of its lumbar vertebrae (lower back) and sacrum (a triangular bone at the base of the spine) to those of modern humans, fossil hominins (extinct bipedal human ancestors), ...

People who suffer from lower back problems are more likely to have a spine similar to that of the chimpanzee, our closest ape ancestor, researchers say. Back pain can result from a lesion known as a ...

The lumbar vertebrae are the largest movable bones of the backbone. Their large size and bone strength is necessary because these vertebrae support more weight than the upper two segments of the ...

A new study shows that women's spines have evolved to compensate for the weight of the baby during pregnancy. This dimorphism allows a woman to remain more active and mobile, despite the weight of the ...