Unexpectedly, the same protein illuminated additional areas in the human head, leading to the discovery ... Traditionally, ...

[3] Figure 1 illustrates the boney anatomy of the normal skull sutures ... Figure 2 shows normal variations in human head shape into adulthood. Each head shape has a unique profile, frontal ...

Medically reviewed by Stuart Hershman, MDFact checked by Maddy SimpsonThe shoulder joint is the articulation between the thorax and the arm. This joint is one of the most complex and mobile joints of ...

But this way of getting around also totally eliminates the need for a tail. Because even though a human head weighs a hefty 5 kilograms, it sits on top of the body when you walk — not in front.