User:PeerlessJ/Gracility

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Gracility in early Hominins
The early hominin bone structure was much less gracile than those of humans today. In fact due to they’re increased bone density, their skeletons were actually quite robust. Researchers attribute this more robust cranium structure to a heightened level of physical activity due to mass mobility among early hominins. One of the most notable differences between the body structures, is the difference in size of trabecular bone structure in the hip joints. In fact, due to the gracilization of this particular bone structure, humans today have become much more susceptible to bone loss. When comparing the differences between robust Australopithecus skeletons and gracile Australopithecus skeletons, significant dietary and behavioral trends proved to be another driving force that marked the difference. For example, studies done on the differences in canine and molar size clearly indicate the effects that the distinct diets of early hominins had on the growth, development and structure of their bodies.

Effects of Gracilization among Modern Humans
The effects that the gradual gracilization of our bone structure has had on us have been widely studied. Many researchers have came to the conclusion that the greatest effect that the gracilization has done to our bodies is put that at more risk for fractures and bone loss.