Earliest Homo Populations in Africa Had Primitive Ape-Like Brains – Just Half the Size of Today’s Humans - SciTechDaily
Apr 12, 2021 1 min, 21 secs

Skulls of early Homo from Georgia with an ape-like brain (left) and from Indonesia with a human-like brain (right).

The human brain as we know it today is relatively young.

It evolved about 1.7 million years ago when the culture of stone tools in Africa became increasingly complex.

The first populations of the genus Homo emerged in Africa about 2.5 million years ago?

These earliest Homo populations in Africa had primitive ape-like brains – just like their extinct ancestors, the australopithecines.

“Our analyses suggest that modern human brain structures emerged only 1.5 to 1.7 million years ago in African Homo populations,” Zollikofer says.

The researchers used computed tomography to examine the skulls of Homo fossils that lived in Africa and Asia 1 to 2 million years ago.

Skull of early Homo from Dmanisi, Georgia showing internal structure of the brain case, and inferred brain morphology.

Apart from the size, the human brain differs from that of the great apes particularly in the location and organization of individual brain regions.

The first Homo populations outside Africa – in Dmanisi in what is now Georgia – had brains that were just as primitive as their African relatives.

Because these imprints vary considerably from individual to individual, until now it was not possible to clearly determine whether a particular Homo fossil had a more ape-like or a more human-like brain.

Reference: “The primitive brain of early Homo” by Marcia S!

“…Homo Populations in Africa Had Primitive Ape-Like Brains…”.

I continue to be perplexed by the term “ape-like” brain…ALL hominids, homo sapiens and chimpanzees are, in fact, apes.

April 10, 2021

April 10, 2021

April 10, 2021

April 10, 2021

April 10, 2021

April 10, 2021

April 10, 2021

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