Yeah I have always been amazed at the complexity of the shoulder joint. You basically have two concentric sets of muscles that do the same thing, but one is for power (the deltoid) and one is for precision (the rotator cuff). I’m oversimplifying but it is pretty unique and it’s why humans are so insanely good with their arms/hands. Looking at other apes trying to hammer a nail for instance, there’s no comparison.
Our shoulders are unique amongst extant apes, none of the others have the ability to throw the way we do.
Due to our shoulders and our muscles, which are excellent for fine motor control, humans are the ballistic experts of the world.
Yeah I have always been amazed at the complexity of the shoulder joint. You basically have two concentric sets of muscles that do the same thing, but one is for power (the deltoid) and one is for precision (the rotator cuff). I’m oversimplifying but it is pretty unique and it’s why humans are so insanely good with their arms/hands. Looking at other apes trying to hammer a nail for instance, there’s no comparison.
But if you put them in a zoo, they will learn to throw feces.