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sharpiefan
01-26-2018, 10:21 AM
Modern Human Brains Have Only Been Around For a Surprisingly Short Time (ARTICLE LINK) (https://www.sciencealert.com/the-modern-human-brain-may-only-be-40-000-years-old-scientists-say)

http://static4.businessinsider.com/image/5a68c37100d0ef26008b4607-1500/heads.jpg&w=600

Image: Above: The blue brain shows the globular shape of present-day human heads. In contrast, the red skull shape of a Neanderthal, like the earliest Homo sapiens fossils, is elongated.
Simon Neubauer, Philipp Gunz, MPI EVA Leipzig



Excerpt
Homo sapiens, in our most "modern" form, have been roaming the earth for about 200,000 years now.

But there's something rather special about the way our brains look today: human skulls are rounder, faces are smaller, and more retracted into the skull. It's different from the way our ancestors looked, more than a hundred thousand years ago.

And now, for the first time, scientists say they've pinpointed precisely when they believe we grew into our modern skulls.

Research published Wednesday in the journal Science Advances by a team at the Max Planck Institute for Evolutionary Anthropology in Germany says there's something distinct about the way our brains and skulls look now, and it likely developed around 40,000 years ago.

Compared to our ancestors, the modern head shape features a bigger, rounder cerebellum (that's the area in the back of the brain, responsible for things like motor control and balance, as well as some memory and language).


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amish rob
01-26-2018, 10:26 AM
Because we started cooking food, which made it easier to eat (bye bye leaf eating ape teeth, and made more nutrition readily bio available. Our face changed shape to reflect our new food sources, and the brain started changing shape with the skull shape change, AND with the new complications of hearth life. Hehe.

The cooking and mastery of Fire was one of the first complicated tool using schemes we developed, and it changed our societies and our bodies.

According to SOME of the books I’ve read and own.

Peace,
Robert

P.S. THIS is my guilty science pleasure. :)

Peerie Maa
01-26-2018, 10:35 AM
That is a bit flakey. It implies that Neanderthals did not
What's remarkable about the find is that our brain shape changes track almost perfectly with the development of modern behaviors, like carving tools, planning, developing self-awareness, languages and even the first cave drawings.which ain't necessarily so.
https://www.newscientist.com/article/mg21328470-400-into-the-mind-of-a-neanderthal/


Abstract

Neanderthal language abilities cannot be directly observed, but indirect evidence is available in their anatomy, archeology, and DNA. Neanderthal anatomy shows possible speech adaptations, and their archeology contains enough indicators of behavioral modernity, including symbols and ornaments, to conclude that their minds could handle symbolic communication. Neanderthal DNA, finally, indicates both that they possessed some of the language-relevant genes found in modern humans and that they could and did have children with modern humans. From the consilience of evidence from anatomy, archeology, and DNA, one can conclude that some language abilities, if not necessarily full modern syntactic language, were present in Neanderthalshttp://www.annualreviews.org/doi/abs/10.1146/annurev-linguist-030514-124945

amish rob
01-26-2018, 10:36 AM
Yeah, but...

Neandertal ain’t us. ;)

Peace,
Robert

Peerie Maa
01-26-2018, 10:41 AM
Yeah, but...

Neandertal ain’t us. ;)

Peace,
Robert

Well about 2% of you is.

amish rob
01-26-2018, 10:50 AM
Well about 2% of you is.
:) I know some that seem about 98%. Hehe.

Peace,
Robert

amish rob
01-26-2018, 10:52 AM
Well about 2% of you is.
The fact that we are different also allows as we maybe learned some of our behaviors from Neanderthal when we started intermingling. Ahem.

Peace,
Robert

birlinn
01-26-2018, 11:13 AM
The Neanderthal brain is bigger....

P.I. Stazzer-Newt
01-26-2018, 11:18 AM
Some people are still struggling with this new geegaw.

amish rob
01-26-2018, 11:24 AM
The Neanderthal brain is bigger....
Manifestly different animal, really. Like a different dog breed. :) Bigger brain in different spots, too. The area of the brain is a step important as the size, according to the brain folks.

If all the ice hadn’t melted and all the mega fauna died, we might never have come to prominence, because our running bodies would not have been an advantage.

We might all be sitting around making fun of the silly little ape men rather than “cave” men. :)

Peace,
Robert

JimD
01-26-2018, 11:59 AM
Modern Human Brains Have Only Been Around For a Surprisingly Short Time and some people still don't have them.

skuthorp
01-26-2018, 03:04 PM
It's a development class Jim.

JimD
01-26-2018, 03:17 PM
Judging by their performance I'll stick with the one I've got.

Ted Hoppe
01-26-2018, 03:19 PM
Modern Human Brains Have Only Been Around For a Surprisingly Short Time and some people still don't have them.



more likely these questionable brains were not exposed to the right prenatal and early development by mothers and later by extended families. Our brains develop and create better neuronet connections when properly stimulated. It is such a sad missed opportunity when we limit this exponential expansion of neuro connections.

JimD
01-26-2018, 03:20 PM
more likely these questionable brains were not exposed to the right prenatal and early development by mothers and later by extended families. Our brains develop and create better neuronet connections when properly stimulated. It is such a sad missed opportunity when we limit this exponential expansion of neuro connections.
Missed opportunity is what our brains do best, or so it often seems.

Phil Y
01-26-2018, 08:31 PM
So Trump is red brain? Who'd a thunk it?