Why human and chimpanzee brains are different


Chimpanzees are the closest relative to humans as far as the evolutionary tree goes. At some point, around 6 million years ago, we branched off in different directions becoming what each species is today. 

While we share a great deal of traits with these primates, we don't share everything. For instance, the human brain has evolved and given us the necessary skills to create technology, educate, and make moral decisions. Not so for the chimpanzee. 

Now, scientists may have the answer as to why this is and it involves 2% of our DNA. The basic summary is below.

Our DNA is very similar to that of the chimpanzee, which in evolutionary terms is our closest living relative. Stem cell researchers have now found a previously overlooked part of our DNA, so-called non-coded DNA, that appears to contribute to a difference which, despite all our similarities, may explain why our brains work differently

Around 2% of our DNA has been called "junk DNA" because it was believed to serve no purpose. But now that may not be true and, in fact, might hold the key to how humans developed our brain functions. Taking stem cells and creating brain cells of both chimpanzees and humans has shown that the previously mentioned useless DNA may be responsible. 

While a long way from being conclusive, this first piece of data could open the doors for unlocking some of the mystery surrounding brain function especially in the field of mental illness. 

By using previously thought "junk" DNA, we are one step closer to knowledge that could eventually help millions of people. Click below for the original article.

CLICK HERE FOR THE ORIGINAL ARTICLE



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