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  • Embargo expired:
    27-Nov-2017 11:00 AM EST

Article ID: 685674

When Physics Gives Evolution a Leg Up by Breaking One

Georgia Institute of Technology

With no biological program to drive it, nascent multicellular clusters adopt a lifecycle thanks to the physics of their stresses. The accidental reproduction drives them to evolve as multicellular life.

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27-Nov-2017 11:00 AM EST
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  • Embargo expired:
    20-Nov-2017 11:00 AM EST

Article ID: 685451

Rise in Oxygen Levels Link to Ancient Explosion of Life, Researchers Find

Washington University in St. Louis

A team of researchers, including a faculty member and postdoctoral fellow from Washington University in St. Louis, found that oxygen levels appear to increase at about the same time as a three-fold increase in biodiversity during the Ordovician Period, between 445 and 485 million years ago, according to a study published Nov. 20 in Nature Geoscience.

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17-Nov-2017 4:05 PM EST
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Article ID: 685382

Fossil That Fills Missing Evolutionary Link Named After UChicago Professors

University of Chicago

Scientists recently announced the discovery of a fossil that fills a missing evolutionary link—the first known member of the modern bryozoans to grow up into a structure. Called Jablonskipora kidwellae, it is named after UChicago geophysical scientists David Jablonski and Susan Kidwell.

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16-Nov-2017 3:55 PM EST
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  • Embargo expired:
    8-Nov-2017 8:55 AM EST

Article ID: 684299

Closing the Rural Health Gap: Media Update from RWJF and Partners on Rural Health Disparities

Newswise

Rural counties continue to rank lowest among counties across the U.S., in terms of health outcomes. A group of national organizations including the Robert Wood Johnson Foundation and the National 4-H Council are leading the way to close the rural health gap.

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8-Nov-2017 8:55 AM EST
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Law and Public Policy

  • Embargo expired:
    7-Nov-2017 8:05 PM EST

Article ID: 684613

Man's Earliest Ancestors Discovered In Southern England

University of Portsmouth

The two teeth are from small, rat-like creatures that lived 145 million years ago in the shadow of the dinosaurs. They are the earliest undisputed fossils of mammals belonging to the line that led to human beings.

Released:
7-Nov-2017 8:05 PM EST
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  • Embargo expired:
    7-Nov-2017 11:00 AM EST

Article ID: 684526

How a “Flipped” Gene Helped Butterflies Evolve Mimicry

University of Chicago Medical Center

Scientists from the University of Chicago analyzed genetic data from a group of swallowtail species to find out when and how mimicry first evolved, and what has been driving those changes since then.

Released:
2-Nov-2017 5:00 PM EDT
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  • Embargo expired:
    6-Nov-2017 11:00 AM EST

Article ID: 684586

Scientists Find Potential “Missing Link” in Chemistry That Led to Life on Earth

Scripps Research Institute

Chemists at The Scripps Research Institute (TSRI) have found a compound that may have been a crucial factor in the origins of life on Earth.

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3-Nov-2017 3:30 PM EDT
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  • Embargo expired:
    6-Nov-2017 12:00 AM EST

Article ID: 684415

Caribbean Islands Reveal a “Lost World” of Ancient Mammals

Stony Brook University

A new study by an international team of scientists reports an analysis of the incredibly diverse “lost world” of Caribbean fossils that includes dozens of ancient mammals. The study reveals that the arrival of humans throughout the islands was likely the primary cause of the extinction of native mammal species there.

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1-Nov-2017 3:05 PM EDT
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  • Embargo expired:
    2-Nov-2017 6:00 AM EDT

Article ID: 684245

Key to Better Asparagus Identified in Evolution of Sex Chromosomes

University of Georgia

Working with an international team of breeders and genome scientists, plant biologists at the University of Georgia have sequenced the genome of garden asparagus as a model for sex chromosome evolution.

Released:
31-Oct-2017 11:05 AM EDT
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Article ID: 683651

Older Neandertal Survived with a Little Help From His Friends

Washington University in St. Louis

An older Neandertal from about 50,000 years ago, who had suffered multiple injuries and other degenerations, became deaf and must have relied on the help of others to avoid prey and survive well into his 40s, indicates a new analysis published Oct. 20 in the online journal PLoS ONE.

Released:
23-Oct-2017 3:40 PM EDT
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