A groundbreaking study has uncovered evidence suggesting that an ancient, unidentified tribe that once thrived along the ...

There is one radius (R1) and one ulna (U1); these are the two bones that connect the wrist and elbow. There are two humerus bones (H1 and H2). The humerus connects the shoulder and the elbow.

Study finds prehistoric hunter-gatherers in South Texas may have crafted musical instruments from human bones.