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News About The Primordial Earth
May 17, 2016
Surviving evidence of Earth's formative years
Washington DC (SPX) May 13, 2016
New work from a team including Carnegie's Hanika Rizo and Richard Carlson, as well as Richard Walker from the University of Maryland, has found material in rock formations that dates back to shortly after Earth formed. The discovery will help scientists understand the processes that shaped our planet's formative period and its internal dynamics over the last 4.5 billion years. It is published by Science. Earth formed from the accretion of matter surrounding the young Sun. The heat of its formation ... read more

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Cosmic dust reveals Earth's ancient atmosphere
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A filter that shaped evolution of primates in Asia
By studying fossils from southern China, scientists have gained insights into how primates in Asia evolved to resemble the array seen today. The results suggest that a distinct period marked by cool ... more
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Endangered venomous mammal predates dinosaurs' extinction
The University of Illinois and University of Puerto Rico have completely sequenced the mitochondrial genome for the Hispaniolan solenodon, filling in the last major branch of placental mammals on th ... more
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New evidence connects dung beetle evolution to dinosaurs
Researchers have found an evolutionary connection between dinosaurs and dung beetles. An international team of scientists uncovered the first molecular evidence indicating that dung beetles evolved ... more
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Trinity scientists reveal origin of Earth's oldest crystals
New research suggests that the very oldest pieces of rock on Earth - zircon crystals - are likely to have formed in the craters left by violent asteroid impacts that peppered our nascent planet, rat ... more
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Geochemical detectives use lab mimicry to look back in time
New work from a research team led by Carnegie's Anat Shahar contains some unexpected findings about iron chemistry under high-pressure conditions, such as those likely found in the Earth's core, whe ... more
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Unique fragment from Earth's formation returns after billions of years in cold storage
In a paper to be published in the journal Science Advances, lead author Karen Meech of the University of Hawai`i's Institute for Astronomy and her colleagues conclude that C/2014 S3 (PANSTARRS) form ... more
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Role of life's timekeeper - a novel theory of animal evolution
This article presents a new theory of animal (metazoan) evolution, suggesting that it was partly mediated through a biochemical oscillator (cycler), named Life's Timekeeper, present in all animal ce ... more
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Fossils may reveal 20-million-year history of penguins in Australia
Multiple dispersals of penguins reached Australia after the continent split from Antarctica, including 'giant penguins' that may have lived there after they went extinct elsewhere, according to a st ... more
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Tiny fossil horses put their back into it
Modern horses are expert runners. They reach top speeds using a special running gait in which they hold their back stiff as they move. A new study reveals that tiny fossil ancestors of modern horses ... more
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Mammal-like reptile survived much longer than thought
Teeth can reveal a lot, such as how the earliest mammals lived with their neighbors. Researchers have uncovered dozens of fossilized teeth in Kuwajima, Japan and identified this as a new species of ... more
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How and why single cell organisms evolved into multicellular life
Throughout the history of life on Earth, multicellular life evolved from single cells numerous times, but explaining how this happened is one of the major evolutionary puzzles of our time. However, ... more
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Study shows dinosaur families chose to exit Europe
Researchers have used 'network theory' for the first time to visually depict the movement of dinosaurs around the world during the Mesozoic Era - including a curious exodus from Europe. The re ... more
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Missing links brewed in primordial puddles
The crucibles that bore out early building blocks of life may have been, in many cases, modest puddles. Now, researchers working with that hypothesis have achieved a significant advancement toward u ... more
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Leg-wing coordination key tp origin of flight for baby birds, dinosaurs
Hi-res X-ray movies reveal that despite having extremely underdeveloped muscles and wings, young birds may acquire a mature flight stroke early in development by initially relying more on their legs ... more
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Ancient crocodylian fossils show evidence for parallel evolution
The 13-million-year-old fossils of an extinct crocodylian, named 'the storyteller,' suggest that South American and Indian species evolved separately to acquire protruding, 'telescoped' eyes for riv ... more
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Did our limbs may have evolved from sharks' gills
Latest analysis shows that human limbs share a genetic programme with the gills of cartilaginous fishes such as sharks and skates, providing evidence to support a century-old theory on the origin of ... more
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How did human paired limbs evolve
Sharks, skates, and rays are oddities among the fish: They have appendages growing out of the gill arch, a small cradle of bones that supports the gills. This anatomical peculiarity has led to the p ... more
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Ancient DNA reveals evolution of giant bears in the Americas
The work of University of Adelaide researchers is shedding new light on the evolution of what are believed to be the largest bears that ever walked the Earth. Dr Kieren Mitchell, from the Univ ... more
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Dinosaurs 'already in decline' before asteroid apocalypse
Dinosaurs were already in an evolutionary decline tens of millions of years before the meteorite impact that finally finished them off, new research has found. The findings provide a revolution in t ... more
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Copper gives an answer to the rise of oxygen
"Our findings make it possible to reconstruct nutrient content in early marine settings and demonstrate that the iron-rich content of the early oceans must have severely restricted the availability ... more
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Dino dinner, dead or alive
When asked to think of meat-eating dinosaurs we usually conjure images of voracious predators chasing down helpless prey. These visions are no doubt inspired by the depiction of species such as Tyra ... more
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What massive volcanic eruptions say about climate change
A new study details the tremendous effects a massive volcanic eruption can have on Earth's climate. ... more
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Prehistoric peepers offer clues to 300 million year old 'Tully Monster'
A 300 million year-old fossil mystery has been solved by a research team led by the University of Leicester, which has identified that the ancient 'Tully Monster' was a vertebrate - due to the uniqu ... more
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Supernovae showered Earth with radioactive debris
An international team of scientists has found evidence of a series of massive supernova explosions near our solar system, which showered the Earth with radioactive debris. The scientists found radio ... more
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