In todays posting, I’m going to continue talking about the BBC article I discovered a few weeks ago and the subject matter of “evolution” thats involved within it. If you enjoy reading about this type of material, please continue to follow this posting…
Just the other day, I posted an article about a new discovery in the field of “human evolution” and “human history”. As I said before, I found this article to be very intriguing. I believe we should all hold some type of interest in this area because we can learn much from it.
Below, are some of the details on why this subject is making headlines in “Human History”.
“It’s at the point where we transition from an ape that walks on two legs to, effectively, us,” lead scientist Professor Lee Berger of the University of the Witwatersrand told BBC News.
the article states that scientist tested the sediment that incased the skeletal remains.the original testing dated the skeletons to 1.78 to 1.9 million years ago but the new testing put the skeletons age from 1.977 to 1.98 million years ago. which in turn leaves enough time for the skeletons to originate from H. Erectus.
the process of high-resolution X-ray scans they found that the brain from A. Sediba’s was about the size of a medium grapefruit. now the brain size of this specimen was found to be much smalller than older fossils like “Lucy”that was found just a few years ago. “Lucy” an Australopithecus afarensis (3.2 million years).The new specimens that were found had more along the lines of a human shaped brain and may have been the start of re-organisation of the brain and in turn would be absolute necessary to make us what we are today.
The pelvis area of A. Sediba is also shaped like our pevis’s we have today. They found that they were short and broad. older specimens like the “lucy” specimen were shaped quite differently.
A. Sediba hands looked like a modern human hands than an ape hand. Scientist also found that the hands were more of the shape of a modern humans hands rather than a primates and would have had the structure to make simple tools because of the shape of the hands.
The feet were found to me more along the lines of a modern human feet. Scientist state that A. Sediba had an ape-like heel and also had a lower shin bone.
Dr William Harcourt-Smith from the American Museum of Natural History in New York states “But some of them are side branches, and we’re trying to work out which ones are and which ones aren’t – and that’s why this finding is so important. In many ways, these fossils are the ‘smoking gun’ just before the emergence of our own genus.”
To some people, these discoveries have no meaning or may not be important enough to care about ,but these newly found discoveries will change how we perceive ourselves today and maybe ,if we can continue along this journey we will find “where” we fit into our past.