Showing posts with label early man. Show all posts
Showing posts with label early man. Show all posts

Thursday, February 23, 2012

Man's First Homes And Settlements

Excavations in Jordan have revealed dwellings dating back millennia before the development of agricultural settlements. The finds suggest that hunter-gatherers could sustain at least partially sedentary lives. Credit: L. Maher, EFAP Archive

Shelters Date To Stone Age -- Science News

Hunter-gatherers hung out in huts long before farmers built villages.

The remains of a couple of nearly 20,000-year-old huts, excavated in a Jordanian desert basin, add to evidence that hunter-gatherers built long-term dwellings 10,000 years before farming villages debuted in the Middle East.

These new discoveries come from a time of social transition, when mobile hunter-gatherers hunkered down for months at a time in spots that featured rivers, lakes and plentiful game, say archaeologist Lisa Maher of the University of California, Berkeley and her colleagues. Discoveries in and around hut remnants at a Stone Age site called Kharaneh IV include hearths, animal bones and caches of pierced seashells and other apparently ritual items, Maher’s team reports in a paper published online February 15 in PLoS ONE.

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My Comment: It looks like "early man" was far more sophisticated than what we give him credit for.

Monday, September 26, 2011

How Asia Was Settled By Man

To extract DNA from a fossilized bone, researchers extract material using a dentistry drill. (Credit: Image courtesy of the National Science Foundation)

Asia Was Settled in Multiple Waves of Migration, DNA Study Suggests -- Science Daily

ScienceDaily (Sep. 26, 2011) — An international team of researchers studying DNA patterns from modern and archaic humans has uncovered new clues about the movement and intermixing of populations more than 40,000 years ago in Asia.

Using state-of-the-art genome analysis methods, scientists from Harvard Medical School and the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, have found that Denisovans -- a recently identified group of archaic humans whose DNA was extracted last year from a finger bone excavated in Siberia -- contributed DNA not just to present-day New Guineans, but also to aboriginal Australian and Philippine populations.

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Saturday, August 6, 2011

Where Did Man Learn To Walk

Giraffes roam in a wooded grassland savanna in Kenya's Nakuru National Park. The savanna grades into the woodland in the background. Credit: Naomi Levin, Johns Hopkins University

Where Did Humans Learn To Walk? -- Cosmos/AFP

PARIS: Grasslands dominated the cradle of humanity in east Africa longer and more broadly than thought, a new study has said, bolstering the idea that the rise of such landscapes shaped human evolution.

According to the so-called 'savannah hypothesis', the gradual transition from dense forests into grasslands helped drive the shift toward bipedalism, increased brain size and other distinctively human traits.

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Monday, August 1, 2011

Fall Of The Neanderthals

Map of the migration of modern man out of Africa. Triangles represent Aurignacian (considered the first modern humans) split-base points. (Credit: Dora Kemp, McDonald Institute for Archaeological Research)

Fall of the Neanderthals: Volume of Modern Humans Infiltrating Europe Cited as Critical Factor -- Science Daily

ScienceDaily (July 29, 2011) — New research sheds light on why, after 300,000 years of domination, European Neanderthals abruptly disappeared. Researchers from the University of Cambridge have discovered that modern humans coming from Africa swarmed the region, arriving with over ten times the population as the Neanderthal inhabitants.

The reasons for the relatively sudden disappearance of the European Neanderthal populations across the continent around 40,000 years ago has for long remained one of the great mysteries of human evolution.

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Wednesday, June 1, 2011

Photo: "Mrs Ples" is the most famous example of A. africanus from the Sterkfontein cave site

Ancient Cave Women 'Left Home' -- BBC

Analysis of early human-like populations in southern Africa suggests females left their childhood homes, while males stayed at home.

An international team examined tooth samples for metallic traces which can be linked to the geological areas in which individuals grew up.

The conclusion was that while most the males lived and died around the same river valley, the females moved on.

Similar patterns have been observed in chimpanzees, bonobos and modern humans.

Details of the study are published in a letter in Nature.

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Tuesday, February 1, 2011

Rewriting History Of Man As A Global Species


Out Of Africa: Stone Tools Rewrite History Of Man As A Global Species -- The Independent

A stone-age archaeological site in the Arabian peninsula has become the focus of a radical theory of how early humans made the long walk from their evolutionary homeland of Africa to become a globally-dispersed species.

Scientists have found a set of stone tools buried beneath a collapsed rock shelter in the barren hills of the United Arab Emirates that they believe were made about 125,000 years ago by people who had migrated out of eastern African by crossing the Red Sea when sea levels were at a record low.

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My Comment: This debate is going to go on long after we are all gone.

Friday, January 28, 2011

Early Humans Left the Trees 4.2 Million Years Ago

A reconstructed head of Australopithecus afarensis for an exhibit at the Smithsonian's National Museum of Natural History. John Gurche/Smithsonian

Humans Left Trees 4.2 Million Years Ago -- Discovery News

Wrist bones of human ancestors reveal when humans switched from living in trees to on the ground.

* Fossilized wrist bones suggest humans switched from trees to a terrestrial lifestyle between 4.2 and 3.5 million years ago.
* Tree dwellers experience more stress on the pinky side of their hands while terrestrial species tend to load more stress on the thumb side.
* The timing of the switch coincides with climate and habitat changes and a shift in diet.

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My Comment: We've gone a long way in 4.2 million years.

Man's Migration Out Of Africa More Complicated Than Thought


Ancient Tools May Mark Earlier Path Out Of Africa -- Wired Science

The bodies are still missing, but a prehistoric toolkit discovered in the United Arab Emirates has led some archaeologists to propose a more complex scenario for humanity’s emigration out of Africa.

Uncovered at a Jebel Faya rock shelter, just west of the Straits of Hormuz at the mouth of the Persian Gulf, the tools are 125,000 years old. Previous estimates placed the dispersal of modern humans from North Africa around 70,000 years ago. If correct, this new study indicates that humans in eastern Africa left earlier, and traveled to Arabia.

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My Comment: Time to change the history books.

Thursday, January 27, 2011

Did Humans Leave Africa Earlier Than Thought

This undated handout photo provided by the journal Science shows the Jebel Faya rockshelter from above, looking north, showing eboulis blocks from roof collapse and the location of excavation trenches. (CBS)

Humans May Have Left Africa Earlier Than Thought -- CBS News

New Evidence Suggests Early Humans Exited Africa Much Earlier Than Thought, Entering An Arabian Savannah.

(AP) WASHINGTON - Modern humans may have left Africa thousands of years earlier than previously thought, turning right and heading across the Red Sea into Arabia rather than following the Nile to a northern exit, an international team of researchers says.

Stone tools discovered in the United Arab Emirates indicate the presence of modern humans between 100,000 and 125,000 years ago, the researchers report in Friday's edition of the journal Science.

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Monday, October 4, 2010

Oldest High-Altitude Settlements Discovered

The Ivane Valley in Papua New Guinea appears covered in mist in this photo. Click to enlarge this image. Glenn Summerhayes and Andrew Fairbairn

From Discovery News:

The remains of fires, stone tools and food surface at six campsites dating back up to 49,000 years.

The world's oldest known high-altitude human settlements, dating back up to 49,000 years, have been found sealed in volcanic ash in Papua New Guinea mountains, archaeologists said Friday.

Researchers have unearthed the remains of about six camps, including fragments of stone tools and food, in an area near the town of Kokoda, said an archaeologist on the team, Andrew Fairbairn.

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No Evidence for Clovis Comet Catastrophe, Archaeologists Say

These are Clovis Points. (Credit: David Meltzer)

From Science Daily:

ScienceDaily (Oct. 1, 2010) — New research challenges the controversial theory that an ancient comet impact devastated the Clovis people, one of the earliest known cultures to inhabit North America.

Writing in the October issue of Current Anthropology, archaeologists Vance Holliday (University of Arizona) and David Meltzer (Southern Methodist University) argue that there is nothing in the archaeological record to suggest an abrupt collapse of Clovis populations.

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Thursday, September 30, 2010

Did Australian Aborigines Reach America First?

The skull of Luzia, possibly the oldest skeleton in the Americas, who has facial features distinctive of Australian Aborigines. Credit: Marco Fernandes/COSMOS

From Cosmos:

SYDNEY: Cranial features distinctive to Australian Aborigines are present in hundreds of skulls that have been uncovered in Central and South America, some dating back to over 11,000 years ago.

Evolutionary biologist Walter Neves of the University of São Paulo, whose findings are reported in a cover story in the latest issue of Cosmos magazine, has examined these skeletons and recovered others, and argues that there is now a mass of evidence indicating that at least two different populations colonised the Americas.

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Wednesday, September 1, 2010

Early Man And Cannibalism

A model of a homo antecessor female scooping out the brains of human head

Early Man 'Butchered And Ate The Brains Of Children As Part Of Everyday Diet' -- The Daily Mail

Early cavemen in Europe ate human meat as part of their everyday diet, new research suggests.

A new study of fossil bones in Spain shows that cannibalism was a normal part of daily life around 800,000 years ago among Europe’s first humans.

Bones from the cave, called Gran Dolina, show signs of cuts and other marks which will have been made by early stone tools.

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My Comment: Hmmmm ... brains ....

First Clear Evidence Of Organized Feasting By Early Humans

This is a view of excavation area at Hilazon Tachtit Cave, Israel. (Credit: Naftali Hilger)

From Science Daily:

ScienceDaily (Aug. 30, 2010) — Community feasting is one of the most universal and important social behaviors found among humans. Now, scientists have found the earliest clear evidence of organized feasting, from a burial site dated about 12,000 years ago. These remains represent the first archaeological verification that human feasting began before the advent of agriculture.

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My Comment: I guess this tells us that the 'family get together' has been with us since the beginning of time.

Earliest Fossil Evidence Of Humans In Southeast Asia?

Archaeologists excavating Callao Cave in the Philippines.
Armand Salvador Mijares

From Earth Magazine:

Modern humans reached the islands of Southeast Asia by approximately 50,000 years ago, but our ancestors’ journey was not easy. Even during times of low sea level, a voyage to some of these islands would have required crossing open water, leaving many scientists to wonder how humans arrived on the most isolated islands. Now the story is growing more complicated: A group of archaeologists has discovered a 67,000-year-old foot bone that they say represents the earliest-known presence of humans in the northern Philippines and may be among the oldest-known traces of modern humans in all of Southeast Asia — that is, if the bone truly belongs to Homo sapiens. The bone’s small size and unusual features make it difficult to determine exactly which species of Homo it was — Homo sapiens, Homo floresiensis or something else?

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My Comment: Makes one wonder why early man migrated here. Climate? Food sources?

Thursday, April 22, 2010

We May All Be A Little Bit Neanderthal As Study Finds Species Interbred Twice With Humans

A new study suggests that most of us have some Neanderthal genes in our DNA. Scientists believe our ancestors may have bred twice with the extinct species

From The Daily Mail:

It won't come as a surprise to anyone wandering around Britain's city centres late on a Friday night. But scientists have discovered that most people have a little bit of Neanderthal man in them.

A major DNA study suggests that our ancestors interbred with the Neanderthals at least twice tens of thousands of years ago - and that their genes have been carried down the millennia ever since.

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Monday, April 12, 2010

Ancient Pre-Human Skeleton May Contain Shrunken Brain

The cranium of the newly identified species, Australopithecus sediba, was found at the Malapa site, South Africa. Credit: Photo by Brett Eloff courtesy of Lee Berger and the University of the Witwatersrand.

From Live Science:

A shrunken brain may potentially lie inside the fossil skull of a newfound candidate for the immediate ancestor to the human lineage, researchers now reveal.

This new species, dubbed Australopithecus sediba, was accidentally discovered in South Africa by the 9-year-old son of a scientist. Two members of this hominid were introduced to the world last week — a juvenile male and an adult female, who might have known each other in life and who could have met their demise by falling into the remains of the cave where they were discovered.

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Thursday, March 25, 2010

Ancient 'X-Woman' Discovered As Man's Early Ancestors Are Pictured Together For The First Time

From The Daily Mail:

A mysterious species of ancient human has been discovered in a cave in southern Siberia.

Nicknamed X-Woman, scientists say the human lived alongside our ancestors tens of thousands of years ago.

The discovery, which could rewrite mankind's family tree, was made after analysis of DNA from a fossilised finger bone.

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The X-Woman’s Fingerbone

From Discover Magazine:

In a cave in Siberia, scientists have found a 40,000-year old pinky bone that could belong to an entirely new species of hominid. Or it may be yet another example of how hard it is to figure where one species stops and another begins–even when one of those species is our own. Big news, perhaps, or ambiguous news.

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Wednesday, March 24, 2010

Ancient DNA Suggests New Hominid Line

CAVE OF MYSTERIES: Mitochondrial DNA analysis of a finger bone found in Denisova Cave in the Altai Mountains of southern Siberia suggests that a group of unknown hominids ventured out of Africa less than a million years ago. J. Krause

From Science News:

Genetic data unveil a shadowy, previously unknown Stone Age ancestor.

A new member of the human evolutionary family has been proposed for the first time based on an ancient genetic sequence, not fossil bones. Even more surprising, this novel and still mysterious hominid, if confirmed, would have lived near Stone Age Neandertals and Homo sapiens.

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