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Categories: Anthropology: Early Humans, Geoscience: Volcanoes

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Anthropology: Cultures Anthropology: Early Humans Archaeology: General
Published

Meet the first Neanderthal family      (via sciencedaily.com) 

Researchers have managed to sequence multiple individuals from a remote Neanderthal community in Siberia. Among these thirteen individuals, the researchers identified multiple related individuals -- among these a father and his teenage daughter. The researchers were also able to use the thirteen genomes to provide a glimpse into the social organization of a Neanderthal community. They appear to have been a small group of close relatives, consisting of ten to twenty members, and communities were primarily connected through female migration.

Anthropology: Early Humans
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A new route to evolution: How DNA from our mitochondria works its way into our genomes      (via sciencedaily.com) 

Scientists have shown that in one in every 4,000 births, some of the genetic code from our mitochondria -- the 'batteries' that power our cells -- inserts itself into our DNA, revealing a surprising new insight into how humans evolve. Researchers show that mitochondrial DNA also appears in some cancer DNA, suggesting that it acts as a sticking plaster to try and repair damage to our genetic code.

Archaeology: General Geoscience: Volcanoes
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Detailing a disastrous autumn day in ancient Italy      (via sciencedaily.com) 

The Plinian eruption of Mount Vesuvius around 4,000 years ago -- 2,000 years before the one that buried the Roman city of Pompeii -- left a remarkably intact glimpse into Early Bronze Age village life in the Campania region of Southern Italy. The village offers a rare glimpse into the lives of the people who lived there, and the degree of preservation led the researchers to pinpoint the timing of the eruption, based on archaeobotanical record.

Anthropology: Early Humans
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Dead fish breathes new life into the evolutionary origin of fins and limbs      (via sciencedaily.com) 

A trove of fossils in China, unearthed in rock dating back some 436 million years, have revealed for the first time that the mysterious galeaspids, a jawless freshwater fish, possessed paired fins.

Anthropology: Early Humans Paleontology: Early Mammals and Birds
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Revealing the genome of the common ancestor of all mammals      (via sciencedaily.com) 

An international team has reconstructed the genome organization of the earliest common ancestor of all mammals. The reconstructed ancestral genome could help in understanding the evolution of mammals and in conservation of modern animals. The earliest mammal ancestor likely looked like the fossil animal 'Morganucodon' which lived about 200 million years ago.

Anthropology: Cultures Anthropology: Early Humans
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Key phases of human evolution coincide with flickers in eastern Africa's climate      (via sciencedaily.com) 

Interdisciplinary research in southern Ethiopia enabled the deciphering of eastern Africa's climatic heartbeat and shows how key phases of climate change influenced human evolution, dispersal and innovation.

Anthropology: Early Humans
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Exposing the evolutionary weak spots of the human genome      (via sciencedaily.com) 

Mutations can drastically help or hurt the odds of an organism surviving and reproducing. Researchers have created a computer program called ExtRaINSIGHT that tracks the history of harmful mutations throughout human evolution. They've discovered several regions of the genome are especially vulnerable to mutations, meaning any mutations there could lead to severe or lethal consequences.

Anthropology: Cultures Anthropology: Early Humans Archaeology: General
Published

The anglo-saxon migration: New insights from genetics      (via sciencedaily.com) 

In the largest early-medieval population study to date, an interdisciplinary team consisting of geneticists and archaeologists analyzed over 400 individuals from ancient Britain, Ireland, Germany, Denmark and the Netherlands. The results show in detail one of the largest population transformations in the post-Roman world.

Geoscience: Earthquakes Geoscience: Volcanoes
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Earth's newest secret: How volcanoes really work      (via sciencedaily.com) 

It isn't every day that we learn something that fundamentally changes how we understand our world. But for volcanologists across the globe, such a revelation has occurred.

Anthropology: Early Humans
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Early gibbon fossil found in southwest China: Discovery fills evolutionary history gap of apes      (via sciencedaily.com) 

A team of scientists has discovered the earliest gibbon fossil, a find that helps fill a long-elusive evolutionary gap in the history of apes.

Anthropology: Early Humans
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Earliest land animals had fewer skull bones than fish -- restricting their evolution, scientists find      (via sciencedaily.com) 

The skulls of tetrapods had fewer bones than extinct and living fish, limiting their evolution for millions of years, according to a latest study.

Anthropology: Cultures Anthropology: Early Humans
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Modern humans generate more brain neurons than Neanderthals      (via sciencedaily.com) 

The question of what makes modern humans unique has long been a driving force for researchers. Comparisons with our closest relatives, the Neanderthals, therefore provide fascinating insights. The increase in brain size, and in neuron production during brain development, are considered to be major factors for the increased cognitive abilities that occurred during human evolution. However, while both Neanderthals and modern humans develop brains of similar size, very little is known about whether modern human and Neanderthal brains may have differed in terms of their neuron production during development. Researchers now show that the modern human variant of the protein TKTL1, which differs by only a single amino acid from the Neanderthal variant, increases one type of brain progenitor cells, called basal radial glia, in the modern human brain.

Anthropology: Early Humans
Published

Resolving the evolutionary history of the closest algal relatives of land plants      (via sciencedaily.com) 

Scientists use genomic data to resolve the phylogeny of zygnematophyte algae and pinpoint several emergences of multicellularity in the closest known relatives of terrestrial plants.

Anthropology: Early Humans
Published

Sahelanthropus, the oldest representative of humanity, was indeed bipedal...but that's not all!      (via sciencedaily.com) 

The modalities and date of emergence of bipedalism remain bitterly debated, in particular because of a small number of very old human fossils. Sahelanthropus tchadensis, discovered in 2001 in Chad, is considered to be the oldest representative of the humankind. The shape of its cranium suggests a bipedal station. The description of three limb bones of Sahelanthropus confirms habitual bipedalism, but not exclusively.

Anthropology: Cultures Anthropology: Early Humans
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Study of ancient skulls sheds light on human interbreeding with Neanderthals      (via sciencedaily.com) 

Research has established that there are traces of Neandertal DNA in the genome of modern humans. Now an exploratory study that assessed the facial structure of prehistoric skulls is offering new insights, and supports the hypothesis that much of this interbreeding took place in the Near East -- the region ranging from North Africa to Iraq.

Geoscience: Earthquakes Geoscience: Volcanoes
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Wave created by Tonga volcano eruption reached 90 meters -- nine times taller than 2011 Japan tsunami      (via sciencedaily.com) 

New research reveals more about the magnitude of January eruption, as researchers call for better preparedness The eruption of the Hunga Tonga-Hunga Ha'apai volcano in January created an initial wave 90 meters high -- almost the height of the Statue of Liberty (93m). Tsunami expert calls for better warning systems to detect volcanic eruptions, saying systems are '30 years behind' comparable earthquake detection tools.

Geoscience: Volcanoes
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Risk of volcano catastrophe 'a roll of the dice'      (via sciencedaily.com) 

While funding is pumped into preventing low-probability scenarios such as asteroid collision, the far more likely threat of a large volcanic eruption is close to ignored -- despite much that could be done to reduce the risks, say researchers.

Geoscience: Volcanoes
Published

Risk of volcano catastrophe 'a roll of the dice', say experts      (via sciencedaily.com) 

While funding is pumped into preventing low-probability scenarios such as asteroid collision, the far more likely threat of a large volcanic eruption is close to ignored -- despite much that could be done to reduce the risks, say researchers.

Anthropology: Early Humans
Published

No, the human brain did not shrink 3,000 years ago      (via sciencedaily.com) 

Did the 12th century B.C.E. -- a time when humans were forging great empires and developing new forms of written text -- coincide with an evolutionary reduction in brain size? Think again, says a team of researchers whose new paper refutes a hypothesis that's growing increasingly popular among the science community.

Geoscience: Volcanoes
Published

Volcanic super eruptions are millions of years in the making -- followed by swift surge      (via sciencedaily.com) 

Researchers have discovered that super-eruptions occur when huge accumulations of magma deep in the Earth's crust, formed over millions of years, move rapidly to the surface disrupting pre-existing rock.