Evolution News

New Evolution Study Reveals Massive Genome Shift

June 15, 2015

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New Evolution Study Finds Massive Genome Shift in One Generation

By applying the latest tools of genome sequencing and analysis to preserved evidence from experiments carried out at Notre Dame in the 1990s, a new evolution study finds a massive genome shift in one generation. A team of biologists from Rice University, the University of Notre Dame and three other schools has discovered that an […]

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A New Timetable of Evolution – Reappraisal of Hydrocarbon Biomarkers in Archean Rocks

June 4, 2015

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A New Timetable of Evolution

New data show that the first single-celled organisms with a nucleus originated more than a billion years later than biogeochemical evidence had previously indicated. Contaminated samples have evidently created some confusion in the timetable of life. On the basis of ultra-clean analyses, an international team, including scientists from the Max Planck Institute for Biogeochemistry, has […]

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New Evidence on the Origins of Life on Earth

June 3, 2015

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New Evidence Emerges on the Origins of Life

Two newly published studies reveal evidence for how the genetic code developed in two distinct stages to help primordial chemicals evolve into cells. Chapel Hill, North Carolina – In the beginning, there were simple chemicals. And they produced amino acids that eventually became the proteins necessary to create single cells. And the single cells became […]

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Gene Expression Evolves Best Under a House-of-Cards Model

May 15, 2015

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Gene Expression Evolves Under a House-of-Cards Model

Using sophisticated modeling of genomic data from diverse species, scientists from Yale University have answered a longstanding question about which competing model of evolution works best. Their research suggests that the “house of cards” model — which holds that mutations with large effects effectively reshuffle the genomic deck — explains evolutionary processes better than the […]

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Scientists Replicate the Molecular Processes That Led from Dinosaur Snouts to Bird Beaks

May 12, 2015

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Researchers Retrace the Bird’s Beak to Its Dinosaur Origins

Researchers have conducted the first successful reversion of a bird’s skull features, replicating ancestral molecular development to transform chicken embryos in a laboratory into specimens with a snout and palate configuration similar to that of small dinosaurs. Scientists have successfully replicated the molecular processes that led from dinosaur snouts to the first bird beaks. Using […]

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New Conifer Study Illustrates Twists of Evolution

April 29, 2015

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New Study Illustrates Twists of Evolution

A new study from Brown University examines a specialized pollination mechanism in conifers whose traits are linked through function but not development, exploring how integration influences patterns of trait evolution. Providence, Rhode Island (Brown University) — A new study offers not only a sweeping analysis of how pollination has evolved among conifers but also an […]

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Isotopic Evidence Shows Life Could Have Flourished on Earth 3.2 Billion Years Ago

February 17, 2015

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Life Could Have Flourished on Earth 3.2 Billion Years Ago

New research from the University of Washington found evidence that life was pulling nitrogen out of the air and converting it into a form that could support larger communities 3.2 billion years ago. A spark from a lightning bolt, interstellar dust, or a subsea volcano could have triggered the very first life on Earth. But […]

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Barb Geometry of Asymmetrical Feathers Sheds Light on Evolution of Flight

February 11, 2015

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Feathers Shed Light on Evolution of Flight

By taking a closer look at feathers representing the evolutionary transition from dinosaurs to modern birds, Yale researchers demonstrate a better understand of how feathers facilitate flight in modern birds. The asymmetrical flight feathers of their wings are among the most distinctive features of living birds. But how are these feathers actually constructed, and when […]

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Scientists Discover the Greatest Absence of Evolution Ever Reported

February 9, 2015

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Scientists Discover Organism That Hasn’t Evolved

Scientists from UCLA have discovered an organism that hasn’t evolved in more than 2 billion years. An international team of scientists has discovered the greatest absence of evolution ever reported — a type of deep-sea microorganism that appears not to have evolved over more than 2 billion years. But the researchers say that the organisms’ […]

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Low Atmospheric Oxygen Levels Delayed Rise of Animals

October 31, 2014

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Low Oxygen Levels Delayed the Appearance of Animals on Earth

A new study reveals that oxygen levels during the “boring billion” period were only 0.1% of what they are today, providing the first evidence that oxygen levels were low enough during this period to potentially prevent the rise of animals. Geologists are letting the air out of a nagging mystery about the development of animal […]

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Research Reveals Evolution Used Similar “Toolkits” to Shape Flies, Worms, and Humans

August 29, 2014

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Evolution of Flies, Worms and Humans Share Patterns of Gene Expression

Several newly published studies reveal that flies, worms and humans share ancient patterns of gene expression. Although separated by hundreds of millions of years of evolution, flies, worms, and humans share ancient patterns of gene expression, according to a massive Yale-led analysis of genomic data. Two related studies led by scientists at Harvard and Stanford, […]

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Theorists Show How Energy Landscapes Dominate Both Evolution and Folding of Proteins

August 19, 2014

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Theorists Show How Energy Landscapes Dominate Both Evolution and Folding of Proteins

A team of biophysicists at Rice University used computer models to show that the energy landscape involved in the long-term evolution of proteins is essentially the same as that involved in the folding process that takes as little as microseconds. Nature’s artistic and engineering skills are evident in proteins, life’s robust molecular machines. Scientists at […]

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New Study Presents “Water World” Theory for the Emergence of Life

April 16, 2014

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New Study Describes How Electrical Energy Naturally Produced at the Sea Floor Might Have Given Rise to Life

A new study describes how electrical energy naturally produced at the sea floor might have given rise to life, assembling decades of field, laboratory and theoretical research into a grand, unified picture. Life took root more than four billion years ago on our nascent Earth, a wetter and harsher place than now, bathed in sizzling […]

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New Research Tests Theory that Life Originated at Deep Sea Vents

April 9, 2014

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Study Tests Theory that Life Originated at Deep Sea Vents

New research from Woods Hole Oceanographic Institution tests the theory that simple metabolic reactions near ancient seafloor hot springs enabled life as we know it to begin. One of the greatest mysteries facing humans is how life originated on Earth. Scientists have determined approximately when life began (roughly 3.8 billion years ago), but there is […]

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Evidence That Organic Material Can Survive the Impact of a Meteorite

November 13, 2013

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Study Shows Organic Molecules Can Survive Meteorite Impact

In a newly published study, researchers from the Natural History Museum provide the first evidence that any organic material, either inside a meteorite or already on Earth, can survive the impact of a meteorite striking the planet at high speed. New research shows that organic molecules, on which life is based, can survive the impact […]

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Rudimentary Form of Life Sidesteps Normal Replication Processes

November 4, 2013

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Rudimentary Form of Life Sidesteps Normal Replication Process

Researchers from the University of Nottingham have shown that in some organisms the genetic switches that control DNA replication are unnecessary and that cells will actually grow faster when the replication origins are not present. A rudimentary form of life that is found in some of the harshest environments on earth is able to sidestep […]

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Scientists Recreate Patterns of Oxygen Found in the Oldest Rocks in the Solar System

October 25, 2013

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Scientists Solve Mystery of Oxygen Patterns in Early Solar Systems Rocks

UC San Diego cosmochemists demonstrated that a chemical reaction, governed by known physical principles, can generate silicate dust with oxygen anomalies that match those found in the oldest rocks in the solar system. Cosmochemists at the University of California, San Diego, have solved a long standing mystery in the formation of the solar system: Oxygen, […]

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New Findings Challenge Assumptions about the Origins of Life

September 17, 2013

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New Findings Challenge Assumptions about Origins of Life

New research from biochemists at the UNC School of Medicine offers an intriguing new view on how life began, challenging current assumptions about the origins of life. Chapel Hill, North Carolina — Before there was life on Earth, there were molecules. A primordial soup. At some point a few specialized molecules began replicating. This self-replication, […]

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