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TOPIC: Homo Sapiens
Blobrana


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Artifacts unearthed in the United Arab Emirates date back 100,000 years and imply that modern humans first left Africa much earlier than researchers had expected, a new study reports. In light of their excavation, an international team of researchers led by Hans-Peter Uerpmann from Eberhard Karls University in Tübingen, Germany suggests that humans could have arrived on the Arabian Peninsula as early as 125,000 years ago - directly from Africa rather than via the Nile Valley or the Near East, as researchers have suggested in the past.
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Blobrana


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Up until 170,000 years ago, we were all naked

A new study has shown that modern humans began to wear clothing 170, 000 years ago, much earlier than archaeologists had initially expected.
The problem with establishing when humans started wearing clothes is that clothes degrade and cannot be found in archaeological sites.
But researchers at the University of Florida in the United States found an interesting way to establish the date, by studying the evolution of parasites that live on the human body.
The study, published in the January issue of the Oxford University Press journal, Molecular Biology and Evolution, shows how the evolution of body lice can reveal evidence about the evolution of modern humans.
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Blobrana


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Remains found challenge origin theory

Israeli archaeologists said Monday they may have found the earliest evidence yet for the existence of modern man, and if so, it could upset theories of the origin of humans.
A Tel Aviv University team excavating a cave in central Israel said teeth found in the cave are about 400,000 years old and resemble those of other remains of modern man, known scientifically as Homo sapiens, found in Israel. The earliest Homo sapiens remains found until now are half as old.
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Evidence of early man found in Israel

Archaeologists excavating a cave in central Israel believe they have found teeth belonging to the earliest Homo sapiens that could be around 400,000 years old.
The team of scientists who have been excavating Qassem cave, a pre-historic site that was uncovered in 2000, say the size and shape of the teeth are very similar to those of modern man.
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Blobrana


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Early Homo sapiens in China

The timing of the dispersal of our species from Africa is a continuing and lively topic of debate. Evidence that modern humans existed in China more than 100,000 years ago is both equivocal and thought-provoking.
A report by Liu et al., just published in Proceedings of the National Academy of Sciences1, describes modern-human remains from south China that are dated to more than 100,000 years ago. Most researchers would agree that Homo sapiens originated in East Africa between about 190,000 and 160,000 years ago; that members of the species briefly entered the Levant some 100,000-60,000 years ago (when they were displaced by Neanderthals); but that they did not disperse across southern Asia and to Australia until 50,000-60,000 years ago.
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Blobrana


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Oldest tool-use
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Oldest tool-use claim challenged

The idea that human ancestors were using stone tools about 3.4 million years ago has been challenged by a Spanish-led team of researchers.
The original claim was based on what were purported to be butchery marks on animal bones found in Ethiopia.
It pushed back the earliest known tool-use and meat-eating in our ancestors by some 800,000 years.
But Manuel Dominguez-Rodrigo and his team tell PNAS journal that the marks are more likely to be animal scratches.
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Blobrana


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Modern humans could have reached East Asia much earlier than believed, according to new evidence.
An international team analysed fossil teeth and part of a jaw unearthed in southern China in 2007.
In the journal PNAS, the scientists say the fragments belonged to a "modern" human who lived 100,000 years ago.
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Blobrana


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Human migration
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A research team reports new findings of stone age tools that suggest humans came "out of Africa" by land earlier than has been thought.
Geneticists estimate that migration from Africa to South-East Asia and Australia took place as recently as 60,000 years ago.
But Dr Michael Petraglia, of Oxford University, and colleagues say stone artefacts found in the Arabian Peninsula and India point to an exodus starting about 70,000 to 80,000 years ago - and perhaps even earlier.
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What Is Lost When Cultures Die?

Over the past decade geneticists have proved that all people alive today are descendants of a relatively small number of individuals who walked out of Africa some 60,000 years ago and carried the human spirit and imagination to every corner of the habitable world. Our shared heritage implies that all cultures share essentially the same potential, drawing on similar reserves of raw genius.
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Mother of all humans lived 200,000 years ago
Rice statisticians confirm date of 'mitochondrial Eve' with new method

The most robust statistical examination to date of our species' genetic links to "mitochondrial Eve" -- the maternal ancestor of all living humans -- confirms that she lived about 200,000 years ago. The Rice University study was based on a side-by-side comparison of 10 human genetic models that each aim to determine when Eve lived using a very different set of assumptions about the way humans migrated, expanded and spread across Earth.
The research is available online in the journal Theoretical Population Biology.
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