Evolution’s Revolution

Among these representatives of primate evolution, both body size and brain size increased, but body size increased faster. The blood flow to primate brains increased roughly in proportion to brain size. Only in the hominins do we see that blood flow increased faster than brain size, which indicates that the brain was not only developing in size, but in usage as well. And that shows our ancestors were getting smarter.
How our species got smarter: through a rush of blood to the head
How our species got smarter: through a rush of blood to the head
it’s the standing upright instead of parallel to the ground
the heart, but also the legs doing the pumping
hips the locomotion

plus eating meat, too

brains are expensive organs to operate

Neanderthal Range Map
Neanderthal Range Map

If modern humans didn’t reach Europe until about 60,000 years ago, how has DNA from them turned up in a Neanderthal fossil in Germany from 124,000 years ago?

“The answer seems to be that there was a previous migration of early humans – more than 219,000 years ago. One that we’re only just starting to reveal from piecemeal evidence that is DNA extracted from fossilised bones.”

We may have mated with Neanderthals more than 219,000 years ago
We may have mated with Neanderthals more than 219,000 years ago
  • Khanh Nguyen's profile photo
    We breed them to extinction
  • Nina Tryggvason's profile photo
    we had art and language and out competed them
  • Khanh Nguyen's profile photo
    They have arts and crafts too. But you are right, we out compete them.
  • Nina Tryggvason's profile photo
    not at the same level of construction, also they did not innovate in their tools as much as we did.
  • Khanh Nguyen's profile photo

    I don’t know about you but this look artsy to me and it’s confirmed to be drawn by Neadertale

  • Kevin Carney's profile photo

    We can survive on 2,000 calories a day. I’ve read they needed 5,000.

    That’s a huge advantage right there.

  • Nina Tryggvason's profile photo
    +Khanh Nguyen they did have art, they did not have the same complexity – their burials were more simple, as far as I am aware, their art was representative of real world, whereas sapiens also made symbolic art, which indicates a different level of culture. and, their tools took much longer for change and innovation
  • Nina Tryggvason's profile photo
    +Kevin Carney yes, they were bigger bodied and brained than us, and brains are expensive organs; we had leisure time, they didn’t. thrival vs survival.
  • Nina Tryggvason's profile photo
    +Khanh Nguyen what is that image? it looks like of drawing of them not by them.

Neanderthals vs Sapiens

with their higher food need, they had to spend more time in hunting/gathering

while “we” with the lower food need, had more leisure time to develop innovations, decorations – and allow for work specializing that gave rise to trades

and not everyone had to hunt n gather

 A life-size reproduction of a Neanderthal man, Homo neanderthalensis, dressed in modern suit in the Neanderthal Museum in Mettmann, Germany.

the textbooks preferred Out of Africa

but included the China finds

Peking Man Lived 200,000 Years Earlier Than Thought

Peking Man Lived 200,000 Years Earlier Than Thought

Indonesia’s “Java Man”. While searching for fossils in Java, physician Eugène Dubois uncovered the tophalf of an early human skull in 1891.
 and in the 1970s and 1980s, it took time for the textbooks to remove the hoax of Piltdown Man
July 10, 1997…In London, scientists said DNA from a Neanderthal skeleton supported the theory that all humanity descended from an “African Eve” who lived 100,000 to 200,000 years ago.

It was only a couple decades ago that there was total denial

and now, evidence – skulls n other bones and DNA most astonishingly


Last Century, when I was in Post Secondary

we had no idea about this group

Child tooth is fourth fossil clue to mysterious Denisovan humans
Denisovians the other archaic
“A team of researchers with members from Russia, Germany, Canada and Italy studying a tooth found in Denisova cave back in 1984 has found that it belonged to a young Denisovan girl and that it was a baby tooth. In their paper published on the open access site Science Advances, the team also notes that DNA evidence suggests the girl lived approximately 20,000 years before other Denisovans living in the same cave who also left behind fossils that have been found and identified.
The Denisovans are believed to be extinct relatives of Neanderthal. The newly identified fossil brings to just four the number of Denisovan fossils that have been found and identified—one finger and three teeth. Because of the location of Denisova cave, which is located in Siberia, researchers believe the hominins lived in eastern parts of Eurasia, whereas Neanderthal are believed to have lived in western Eurasia.
The Denisovans first came to light back in 2010 when a team of researchers studying a finger bone found in Denisova cave managed to extract a small bit of DNA. Analysis of the sample showed that it was not Neanderthal as had been suspected but was instead from a different early hominn. They called it Denisova after the cave in which it was found. An even closer look at the DNA samples conducted later on showed that the Denisovans split away from Neanderthals during the time frame 470,000 to 190,00 years ago. Subsequent digging in the cave led to the discovery of two teeth that were also identified as Denisovan. The newly identified fourth fossil is believed to have come from a girl approximately 10 to 12 years old”.
A fourth Denisovan fossil has been identified
A fourth Denisovan fossil has been identified
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