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Fossil Hotspot Bias: Are We Missing the Full Story of Human Evolution?
Scitech Daily ^ | August 24, 2024 | George Washington University

Posted on 09/02/2024 6:29:47 PM PDT by SunkenCiv

New research reveals that discrepancies between the locations where fossils are found and the areas where early humans are thought to have resided could affect our comprehension of human evolutionary history.

A significant portion of the early human fossil record comes from a few key locations in Africa, where ideal geological conditions have preserved a wealth of fossils that scientists use to piece together the story of human evolution. One notable area is the eastern branch of the East African Rift System, which includes important fossil sites like Oldupai Gorge in Tanzania.

Yet, the eastern branch of the rift system only accounts for 1% of the surface area of Africa—a fact that makes it possible to estimate how much information scientists who rely on such small samples are missing.

In a new study published in the journal Nature Ecology & Evolution, researchers at the George Washington University show the extent to which the concentration of sites in hotspots like the East African Rift System biases our understanding of human evolution and why scientists must take that bias into account when interpreting early human history...

In a second analysis, Barr and Wood looked at how the skulls of modern primates collected in the rift valley compared with the skulls of the same primates from other parts of the continent. They found that skulls from the rift valley represented less than 50% of the total variation among primate skulls in Africa.

(Excerpt) Read more at scitechdaily.com ...


TOPICS: History; Science; Travel
KEYWORDS: achimpisnotmydaddy; africa; anthropology; crevo; fakescience; flamefestival; fossils; ganymedehypothesis; godsgravesglyphs; gwu; lucy; piltdownman; primates; pseudoscience; tanzania; tedholden
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To: SunkenCiv

Bkmk


21 posted on 09/02/2024 9:13:53 PM PDT by sauropod ("This is a time when people reveal themselves for who they are." James O'Keefe Ne supra crepidam)
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To: Dan Zachary

🙄


22 posted on 09/02/2024 9:29:56 PM PDT by Fuzz
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To: Dan Zachary

Millions of species evolved into smaller sizes. It is called adapt or perish depending on circumstances. Why are Pigmy people short while some tribes in east Africa are tall? Pigmy’s live in tropical jungle where it is easier to move under trees for short people. Those tall tribes in east Africa cultivate cows and live in desert like land. They grew tall from drinking more milk and did not have to now down under trees. Survival of those who adapt & change drives evolution.


23 posted on 09/02/2024 10:48:17 PM PDT by Bobbyvotes (I will be voting for Trump/whoever he picks VP in November. If he loses in 2024, country is toast.)
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To: Dan Zachary

Millions of species evolved into smaller sizes. It is called adapt or perish depending on circumstances. Why are Pigmy people short while some tribes in east Africa are tall? Pigmy’s live in tropical jungle where it is easier to move under trees for short people. Those tall tribes in east Africa cultivate cows and live in desert like land. They grew tall from drinking more milk and did not have to bow down under trees. Survival of those who adapt & change drives evolution.


24 posted on 09/02/2024 10:49:24 PM PDT by Bobbyvotes (I will be voting for Trump/whoever he picks VP in November. If he loses in 2024, country is toast.)
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To: SunkenCiv
I think the article exaggerates the disagreement about the geographic origins of humans.

The Great Apes - specifically, chimpanzees and bonobos - are only found in Africa. Both of those groups have around 99% of human DNA.

In addition, for modern human DNA, there is a clear "Out of Africa" migration that starts around 70,000 years ago in the eastern Mediterranean, in the Fertile Crescent, in the Caucasus region between the Black Sea and the Caspian Sea, and in the Arabian peninsula.

Obviously, there are still many disputed issues...

Where did Homo Erectus come from?

Same question for Neanderthals and Denisovans?

I am not a religious person, so I have no personal stake to defend in that discussion.

On the other side, why would God deliberately try to deceive humans about their historical origin?

25 posted on 09/03/2024 1:02:39 AM PDT by zeestephen (Trump "Lost" By 43,000 Votes - Spread Across Three States - GA, WI, AZ)
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To: Bobbyvotes

The earth being round, it could have happened anywhere in the same latitudinal band.
But it does not appear to have done so.
OR...
The same conditions for preservation of remains was not similar.


26 posted on 09/03/2024 3:14:49 AM PDT by Adder (End fascism...defeat all Democrats.)
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To: zeestephen
Thanks! Common origins (and/or alleged common origins) doesn't have much to do with it. Thanks to DNA, it's known that these recent but earlier versions (particularly Neandertal) are in the ancestry of living people, yet the fossil forms are not found in Africa (even Africans carry Neandertal DNA). During the past 2 million years, what's now the continental shelf was repeatedly uncovered as the sealevels declined. All other things being equal, conditions are warmer the lower the latitude and/or the altitude. It's a good working hypothesis that while the interiors of continents were covered in ice, our ancestors did a lot of their growing up in areas now submerged.
The Elaine Morgan keyword, sorted:
"The most remarkable aspect of Todaro's discovery emerged when he examined Homo Sapiens for the 'baboon marker'. It was not there... Todaro drew one firm conclusion. 'The ancestors of man did not develop in a geographical area where they would have been in contact with the baboon. I would argue that the data we are presenting imply a non-African origin of man millions of years ago.'"
The Scars of Evolution
by Elaine Morgan
Primary Literature by Jonathan Marks
Benveniste, Raoul E. and Todaro, George J. (1976) Evolution of type C viral genes: Evidence for an Asian origin of man. Nature, 261:101-107. This study also applied DNA hybridization to the apes. They found a 3-way split.
socrates.berkeley.edu/~jonmarks/biblio.html

27 posted on 09/03/2024 6:17:27 AM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: nagant

The SAHARA Desert was once GREEN & LUSH.


28 posted on 09/03/2024 8:50:33 AM PDT by ridesthemiles (not giving up on TRUMP---EVER)
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To: SunkenCiv

Humans did not evolve. They were created in God’s Image. Facts, given enough time at the hands of corrupt men, evolve into fiction.


29 posted on 09/03/2024 9:45:55 AM PDT by jimbug
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To: ridesthemiles

The SAHARA Desert was once GREEN & LUSH.
~~~~~

That greenness and lushness was destroyed by rot and sand, along with all traces of life.


30 posted on 09/03/2024 10:36:34 AM PDT by nagant
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To: nagant

OK

All I meant was that fossil hunters have to go where fossils have been preserved. You are right that most human enclaves have been near water but that’s exactly the kind of environment where fossils are unlikely to have formed or survived if they did form.

Especially along ocean shorelines since sea levels have fallen and risen hundreds of feet over and over again. The last great rise in sea level occurred not so long ago in history during the period of 8k to 20k years ago and rose about 400 ft.


31 posted on 09/03/2024 1:16:29 PM PDT by TigersEye (His son nicknamed him Pedo Pete. (mic drop))
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To: Bobbyvotes
So you believe that they adapted to their area rather than finding an area that was better for them? Milk is readily available in the US, why are we not 10 feet tall? Why would we adapt to losing hair/fur and then cover ourselves with the fur of animals to stay warm? It doesn't make any sense.

It is extremely racist to believe that white people are more evolved than those of other colors.

32 posted on 09/03/2024 8:36:47 PM PDT by Dan Zachary
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To: Dan Zachary

Everything makes perfect sense to me!
Humans continue to evolve. Dog breeds continue to expand. Does it amaze you how many different dog breeds have been created by humans from the original species by selective breeding? Evolution happens in nature by survival of the fittest who can adapt to existing environments.


33 posted on 09/04/2024 5:46:30 AM PDT by Bobbyvotes (I will be voting for Trump/whoever he picks VP in November. If he loses in 2024, country is toast.)
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To: Bobbyvotes

It does not amaze me, but it does not prove evolution at all. In fact, it kind of disproves evolution. As you breed dogs and create different versions of dogs you lose DNA information for things like their height or nose length. You can take DNA information away from a wolf to create a Chihuahua, but you cannot add information to go back to a wolf. You cannot add information to create a new type of animal either. A dog will give birth to a dog and will not reproduce with a horse to create something new for example.

“adapt to existing environments”

So you are telling me that you adapted to the environment where you live and did not choose where you live for the environment that fits your needs? If you move to the North Pole, will you grow fur or something to keep you warm?


34 posted on 09/04/2024 10:45:39 PM PDT by Dan Zachary
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