You want to know about what I'm holding? If you would like to hear me out this is a great opportunity for me to tell you something. This is my field of specialty and I would like to let you know that human evolution should be a standard curriculum in all schools. This subject is important in knowing who we are and where we come from. I was taught evolution in school, but not on a human basis. This topic is so interesting to me I decided to major in it and if it is taught throughout school much like history is taught it could lead more people into the field to make great discoveries. We have science and history classes at all levels, why not have something in between in learning our extensive family tree and bring in prehistory to the mix.
When I think of bipedalism and its effects on the skeleton my thoughts always go to the pelvis. I guess since the pelvis is one of my favorite parts of the body because of the unique design evolved for our bipedal locomotion and some fun other stuff. Overtime in our different species ancestors there are changes within the pelvis that allow us to walk upright without discomfort, and (tying back to my previous blog post) why our pelvis is much different than our cousins the chimps. We evolved our narrow anatomic modern pelvis with a more circular birth canal about 200,000 years ago (Gruss, Schmitt 2015), but it did not happen all at once. This took millions of years of our changing of different species ancestors who used different locomotion or in later times similar locomotion to get were our pelvis are now. according to Gruss and Schmitt our pelvis are shorter than that of apes which lowers our center of gravity allowing lumbar lordosis to occur (inward curve in our lower back). This a...
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