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News About The Primordial Earth
April 15, 2017
First oceans may have been acidic
Rehovot, Israel (SPX) Apr 13, 2017
One way to understand how ocean acidity can change, for example, in response to rising carbon dioxide (CO2) levels, is to look to the history of seawater acidity. Dr. Itay Halevy of the Weizmann Institute of Science has looked to the distant past - all the way back to Earth's earliest oceans. The model he developed, together with Dr. Aviv Bachan of Stanford University, suggests that the early oceans, right around the time that life originated, were somewhat acidic, and that they gradually became a ... read more

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UMD-led study finds ancient Earth's fingerprints in young volcanic rocks
Earth's mantle is made of solid rock that nonetheless circulates slowly over millions of years. Some geologists assume that this slow circulation would have wiped away any geochemical traces of Eart ... more
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Next Generation TimeTree
Temple University's scientists Sudhir Kumar and S. Blair Hedges, of the Institute for Genomics and Evolutionary Medicine (iGEM) and Center for Biodiversity, have had a longstanding goal to develop e ... more
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Future CO2 and climate warming potentially unprecedented in 420 million years
New research led by the University of Southampton suggests that, over the next 100 to 200 years, carbon dioxide concentrations in the Earth's atmosphere will head towards values not seen since the T ... more
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400 million years of a stable relationship
Walking through a grassy field or forest take a moment to consider what lies beneath the surface. A web of plant roots interacts symbiotically with arbuscular mycorrhizal (AM) fungi that extend thei ... more
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Independent evolutionary origins of complex sociality in marine life
In the world of evolutionary research, scientists studying the evolution of eusocial societies have traditionally relied on information gathered from studying terrestrial insects. A group of Columbi ... more
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Tyrannosaurs show their sensitive side
A team of researchers, including UNM Honors College Professor Jason R. Moore, has found a new species of tyrannosaur dinosaur - the most popular of the prehistoric creatures. After the fossils were ... more
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Monkey business produces rare preserved blood in amber fossils
Two monkeys grooming each other about 20-30 million years ago may have helped produce a remarkable new find - the first fossilized red blood cells from a mammal, preserved so perfectly in amber that ... more
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Rock exposed in World War I trenches offers new fossil find
An unusual fossil find is giving scientists new ideas about how some of the earliest animals on Earth came to dominate the world's oceans. An international research team found 425-million-year-old f ... more
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Discovery of new predatory dinosaur species gives new insight on their evolution
Jayc Sedlmayr, PhD, Assistant Professor of Cell Biology and Anatomy at LSU Health Sciences Center New Orleans School of Medicine, was part of an international team of scientists who discovered a new ... more
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How chewing like a cow helped early mammals thrive
You probably haven't given much thought to how you chew, but the jaw structure and mechanics of almost all modern mammals may have something to do with why we're here today. In a new paper pub ... more
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Scientists make new discovery about bird evolution
In a new paper published in National Science Review, a team of scientists from the Institute of Vertebrate Paleontology and Paleoanthropology, the Shandong Tianyu Museum of Nature, and the Nanjing I ... more
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Diverse array of dinosaur tracks mark Australia's 'Jurassic Park'
Scientists have discovered an unprecedented diversity of dinosaur tracks along a stretch of Australia's Dampier Peninsula coastline. Researchers dubbed the fossil-rich acreage "Australia's Jurassic Park." ... more
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New study shakes the roots of the dinosaur family tree
More than a century of theory about the evolutionary history of dinosaurs has been turned on its head following the publication of new research from scientists at the University of Cambridge and Nat ... more
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Research proposes new theories about nature of Earth's iron
New research challenges the prevailing theory that the unique nature of Earth's iron was the result of how its core was formed billions of years ago. The study opens the door to competing theo ... more
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Chinese police arrest dinosaur-egg bandit
Chinese police have arrested a man accused of stealing dozens of fossilised dinosaur eggs, state media said Monday, but some eggs are apparently still unaccounted for. ... more
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Recovery after 'great dying' was slowed by more extinctions
Researchers studying marine fossil beds in Italy have found that the world's worst mass extinction was followed by two other extinction events, a conclusion that could explain why it took ecosystems ... more
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Microbes Set The Stage For First Animals
It is thought that animal life first arose during the Ediacaran Period, between 635 and 541 million years ago, but these organisms bore little resemblance to the animals we know today. That's led so ... more
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World's oldest plant-like fossils discovered
Scientists at the Swedish Museum of Natural History have found fossils of 1.6 billion-year-old probable red algae. The spectacular finds, publishing on 14 March in the open access journal PLOS Biolo ... more
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Early Earth had a hazy, methane-filled atmosphere
More than 2.4 billion years ago, Earth's atmosphere was inhospitable, filled with toxic gases that drove wildly fluctuating surface temperatures. Understanding how today's world of mild climates and ... more
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New study identifies ancient shark ancestors
New research based on x-ray imaging provides the strongest evidence to date that sharks arose from a group of bony fishes called acanthodians. Analyzing an extraordinarily well-preserved fossil of a ... more
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Copper-bottomed deposits
The world's most valuable copper deposits, known as porphyry deposits, originate from cooling magma. But how can we predict the size of these deposits? What factors govern the amount of copper prese ... more
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Vision, not limbs, led fish onto land 385 million years ago
provocative new Northwestern University and Claremont McKenna, Scripps and Pitzer colleges study suggests it was the power of the eyes and not the limbs that first led our ancient aquatic ancestors ... more
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A new tool for genetically engineering the oldest branch of life
A new study by G. William Arends Professor of Microbiology at the University of Illinois Bill Metcalf with postdoctoral Fellow Dipti Nayak has documented the use of CRISPR-Cas9 mediated genome editi ... more
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Crocodiles and dolphins evolved similar skulls to catch the same prey: Study finds
A new study involving biologists from Monash University Australia has found that despite their very different ancestors, dolphins and crocodiles evolved similarly-shaped skulls to feed on similar pr ... more
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