The humerus is your upper arm bone. It is the longest bone in the upper part of your body and is connected to many important tendons and ligaments. The top of the humerus is part of the shoulder ...

New fossil evidence suggests echidnas evolved from a water-dwelling ancestor, not a land-based one. The bone structure ...

The humerus bone -- which is the upper arm bone between the shoulder and elbow -- is the only bone known that belongs to the extinct species, Kryoryctes cadburyi, named in 2005. Outwardly ...