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Earliest hominin migrations into the Arabian Peninsula required no novel adaptations
EurekAlert! ^ | October 29, 2018 | Max Planck Institute for the Science of Human History

Posted on 11/02/2018 11:24:36 PM PDT by SunkenCiv

A new study... suggests that early hominin dispersals beyond Africa did not involve adaptations to environmental extremes, such as to arid and harsh deserts. The discovery of stone tools and cut-marks on fossil animal remains at the site of Ti's al Ghadah provides definitive evidence for hominins in Saudi Arabia at least 100,000 years earlier than previously known. Stable isotope analysis of the fossil fauna indicates a dominance of grassland vegetation, with aridity levels similar to those found in open savanna settings in eastern Africa today. The stable isotope data indicates that early dispersals of our archaic ancestors were part of a range expansion rather than a result of novel adaptations to new environmental contexts outside Africa...

It has recently been argued that early Homo sapiens occupied a diversity of extreme environments, including deserts, tropical rainforests, arctic, and high-altitude settings, around the world. By contrast, the dispersals of other earlier and contemporaneous species of Homo, such as Neanderthals, appear to be associated with generalized use of different forest and grassland mosaics in and among river and lake settings. A lack of palaeoenvironmental information has made it difficult to systematically test this idea and indeed a number of researchers maintain that non-Homo sapiens species demonstrate cultural and ecological adaptive flexibility...

Significantly, the research team found stone tools alongside evidence for the butchery of animals on bones, confirming a hominin presence in association with these animals 500,000 to 300,000 years ago. Michael Petraglia, the principal archaeologist of the project and a co-author on the paper says, "This makes Ti's al Ghadah the first, early hominin-associated fossil assemblage from the Arabian Peninsula, demonstrating that our ancestors were exploiting a variety of animals as they wandered into the green interior."

(Excerpt) Read more at eurekalert.org ...


TOPICS: History; Science; Travel
KEYWORDS: arabia; godsgravesglyphs; neandertal; neandertals; neanderthal; neanderthals
This is a sand dune in the Nefud Desert, Saudi Arabia. Credit: Palaeodeserts Project (Klint Janulis)

This is a sand dune in the Nefud Desert, Saudi Arabia. Credit: Palaeodeserts Project (Klint Janulis)

1 posted on 11/02/2018 11:24:36 PM PDT by SunkenCiv
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To: StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...

2 posted on 11/02/2018 11:25:17 PM PDT by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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To: SunkenCiv

But once the first antonyms arrived, pretty much every novel there had to be re-written.


3 posted on 11/03/2018 12:34:53 AM PDT by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: SunkenCiv

Seems like the Human Body was designed well enough to adapt to where it was born and grew up...human know-how took care of the more savage swings of climate, via clothing/shelter but the general habitat/climate/altitude can be ‘grown into’


4 posted on 11/03/2018 3:45:34 AM PDT by trebb (Those who don't donate anything tend to be empty gasbags...no-value-added types)
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To: SunkenCiv
And today those hominids drive Ferraris and have 777s as private planes.
5 posted on 11/03/2018 5:22:57 AM PDT by Gay State Conservative (I've Never Owned Slaves...You've Never Picked Cotton.End Of "Discussion".)
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To: trebb
Seems like the Human Body was designed well enough to adapt to where it was born and grew up...

Not necessarily where they grew up but,rather,where their ancestors are from.I'm no scientist but I doubt that it's a coincidence that my skin is as white and pale as can be thanks to the fact that my Irish ancestors saw almost no sunlight whereas someone from Equatorial regions are likely to have dark skin.That's called adaptation...which occurred gradually over many,many thousands of years.

6 posted on 11/03/2018 5:28:03 AM PDT by Gay State Conservative (I've Never Owned Slaves...You've Never Picked Cotton.End Of "Discussion".)
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To: BenLurkin

Homonim is a homonym.


7 posted on 11/03/2018 5:35:08 AM PDT by Joe 6-pack (Qui me amat, amat et canem meum.)
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To: BenLurkin

LOL!


8 posted on 11/03/2018 3:32:56 PM PDT by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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Fossils hint hominids migrated through a ‘green’ Arabia 300,000 years ago
https://www.sciencenews.org/article/fossils-hint-hominids-migrated-through-green-arabia-300000-years-ago


9 posted on 11/03/2018 7:36:32 PM PDT by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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