This was a very interesting week. I truly think I learned a lot and realized, way more in depth, how our traits and appearances today were morphed over a time period of millions of years ago due to specific reasons from the primates. A couple of the traits that really stood out to me, that really caught my eye, were the size of teeth and bipedalism. I am currently a human biology major on the pre-dental track so learning about teeth in these aspects are super cool and interesting to me and have an impact on my life. It is crazy how teeth have drastically changed over the years and especially in the past fifty something years. I believe teeth have a huge impact on humans. You receive compliments from them due to the way they are maintained. Our teeth, back in the day, and today, are shaped due to certain diets which are used to chew foods into smaller pieces to help with digestion. The canine teeth located on both sides is used for tearing certain kinds of foods. The number one food this is currently used for is meat. It can be extremely difficult to chew meat without using these sharp canine teeth. Just to move focus on the past millions of years, Paranthropus species had very large mouths and large chewing muscles along with pre molars. Genera Ardipithecus showed to have very large canine teeth, although that was mostly used for fighting. These two species were close in time to one another. It showed the drastic change regarding how these teeth had different traits and yet how teeth traits evolved and how they changed many times before getting to where we are today. Another trait that shows evolutionary and human biology is bipedal which is the use of standing upright on the back legs. There has been tremendous evidence that has us believe that primates, before us, walked on their hind legs to get around but were not very good at it. Sense they weren’t that very good at it, they had to use other methods. These methods were tree climbing and swinging. Due to tree climbing and swinging, and being bipedal not as persistent, the primates has to develop longer arms which helped them to get around with. Furthermore, bipedalism saved us humans in a way that evolution changed again and made us have shorter legs. Thus, the legs were not so long so it did not hurt us when we walked around on legs only. There are way more traits but these two were the most talked about and truly were the ones to stand out to me the most. Fossilized human remains from early human ancestors gave us insight to come up with many different ideas. Some of these ideas included: how our ancestors lived, looked like, how we evolved years after years because of different environments, and new adaptations that took place. The only way we know about what humans used to look like/ where they came from was from fossils. The fossilized remains show what we looked like and why we have really long arms which, for example, helped to move around better in trees. Fossils have been also known to compare humans to other humans which shows there are different time frames for understanding fossils. Some fossils can be determined based on their location and what their diet was. Fossils basically paint a picture with how we looked in that time frame and can piece other ideas from that. Lucy was 40 percent complete but with the mirror imaging she was made to be about 80 percent. This had a huge impact and showed anthropologists how, millions of years ago, what females Austalopithecus afarenis looked like and how many changes took place after. I truly believe this was one of the better weeks. I think this was super interesting and truly find it way more interesting due to the teeth aspect.