Evolution and humans; scapula and shoulder shapes (Evolution)

by David Turell @, Thursday, September 17, 2015, 14:22 (1062 days ago) @ David Turell

Another review of the same study. Our shoulder is more monkey-like, but over all we look more like apes. Chicken and egg problem if one thinks this all happened by chance. We are not monkey 'this' and ape 'that'. Problem solved if we were specially designed and split off as a special branch:

http://www.sciencedaily.com/releases/2015/09/150908101236.htm

"The researchers tested these competing theories by comparing 3-D measurements of fossil shoulder blades of early hominins and modern humans against African apes, orangutan, gibbons and large, tree-dwelling monkeys. They found that the modern human's shoulder shape is unique in that it shares the lateral orientation with orangutans and the scapular blade shape with African apes; a primate in the middle.

"'Human shoulder blades are odd, separated from all the apes. Primitive in some ways, derived in other ways, and different from all of them," Young said. "How did the human lineage evolve and where did the common ancestor to modern humans evolve a shoulder like ours?'"

***

"'The mix of ape and human features observed in A. afarensis' shoulder support the notion that, while bipedal, the species engaged in tree climbing and wielded stone tools. This is a primate clearly on its way to becoming human," Alemseged said."


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