<div dir="ltr">Great, just what we need...Pandemics, riots, and now this! ;-)<div><br></div><div><a href="https://youtu.be/idsxgLjGXGI">https://youtu.be/idsxgLjGXGI</a><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jun 19, 2020 at 12:33 PM John Clark via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org">extropy-chat@lists.extropy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><font size="4">A gene called "ARHGAP11B" that is found in humans and in no other animal has long been thought to be at least partially responsible for humans having an extremely large brain with a high degree of cortical folding. All other primates have a similar gene, but a point mutation happened between 500,000 and 1.5 million years ago and a single C was changed to a G in the human version. In yesterday's issue of the journal Science researchers report than when Genetic engineering was used to insert the human gene ARHGAP11B into the fertilized egg of a small monkey (a marmoset ) the result was a fetus with about 45% more neurons in the neocortex than a normal fetus and 3 times as many glial cells. A marmoset gestation period is 152 days but because it had a human gene in it the fetus was aborted after just 101 days due to ethical guidelines, so it's not known how such an animal's behavior would change if it was allowed to come to term.</font><div><br><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:Arial,Helvetica,sans-serif"><a href="https://science.sciencemag.org/content/early/2020/06/17/science.abb2401" target="_blank">Human-specific ARHGAP11B increases size and folding of primate neocortex in the fetal marmoset</a><br></span></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font size="4">John K Clark</font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:Arial,Helvetica,sans-serif"><br></span></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div></div></div>
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