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Article ID: 700427

Tulane Archaeologist Leads Team to Major Maya Find

Tulane University

A team of archaeologists has discovered a nearly 1,500-year old carved altar in the jungles of northern Guatemala.

Released:
12-Sep-2018 2:05 PM EDT

Arts and Humanities

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  • Embargo expired:
    12-Sep-2018 2:00 PM EDT

Article ID: 700389

Human Activity In Madagascar Dates Back 6,000 Years Earlier Than Thought, According To Study Led By Stony Brook University Researcher Pat Wright

Stony Brook University

Humans arrived on the tropical island of Madagascar more than 6,000 years earlier than previously thought based on an analysis of bones from what was once the world’s largest bird, according to a study led by Stony Brook University researcher Dr. Pat Wright and published today in the journal Science Advances.

Released:
12-Sep-2018 10:00 AM EDT

Article ID: 699420

Want to know what ancient koalas ate? First, check modern koalas' teeth

Vanderbilt University

Larisa DeSantis' latest research confirms the shape of tooth wear best indicates the kind of food koalas and kangaroos ate, not whether it was covered in dust and dirt.

Released:
22-Aug-2018 4:05 PM EDT
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Article ID: 699226

Laughing Gas May Have Helped Warm Early Earth and Given Breath to Life

Georgia Institute of Technology

Laughing gas and the mystery of Carl Sagan's Faint Young Sun Paradox: When the sun shone dimmer an eon ago, Earth remained warm in spite of it likely thanks to a mix of greenhouse gases. Biogeochemists have now shown how N20, known today for its use as a dental anesthetic, may have made it into the mix.

Released:
20-Aug-2018 2:05 PM EDT
  • Embargo expired:
    22-Jul-2018 8:00 AM EDT

Article ID: 697398

X-ray Diffraction Method Used to Examine Collagen in the Brain, Heart, and T. rex Fossils

American Crystallographic Association (ACA)

A laboratory at the Illinois Institute of Technology is using fiber diffraction to examine tissue structures in the human brain and heart, as well as in T. rex fossils. Few researchers use this type of X-ray diffraction because of the time and labor required to complete experiments, the researchers have resolved images of the fine threads of collagen fibrils in connective, neurological and dinosaur tissues to one-billionth of a meter. During the 68th Annual Meeting of the American Crystallographic Association, they will explain their work.

Released:
13-Jul-2018 9:00 AM EDT
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  • Embargo expired:
    19-Jul-2018 12:30 PM EDT

Article ID: 697578

Newly Discovered Armored Dinosaur From Utah Reveals Intriguing Family History

University of Utah

Fossils of a new genus and species of an ankylosaurid dinosaur—Akainacephalus johnsoni-- have been unearthed in Grand Staircase-Escalante National Monument in southern Utah, U.S.A., and are revealing new details about the diversity and evolution of this group of armored dinosaurs.

Released:
17-Jul-2018 12:30 PM EDT
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Article ID: 695594

Red Tide Fossils Point to Jurassic Sea Flood

University of Adelaide

Dinosaur-age fossilised remains of tiny organisms normally found in the sea have been discovered in inland, arid Australia – suggesting the area was, for a short time at least, inundated by sea water 40 million years before Australia’s large inland sea existed.

Released:
5-Jun-2018 3:05 AM EDT

Article ID: 695116

Asteroid Impact Grounded Bird Ancestors

Cornell University

An international team of scientists has concluded the asteroid that smashed into Earth 66 million years ago not only wiped out the dinosaurs, but erased the world’s forests and the species that lived in trees. The researchers say only small ground-dwelling birds survived the mass extinction, profoundly changing the course of bird evolution.

Released:
24-May-2018 3:20 PM EDT
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  • Embargo expired:
    23-May-2018 10:00 AM EDT

Article ID: 694816

HHMI Bets Big On 19 New Investigators

Howard Hughes Medical Institute (HHMI)

HHMI invests $200 million in a small cadre of leading scientists, challenging them to push the limits of what we know about biology.

Released:
18-May-2018 12:05 PM EDT
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Article ID: 694837

Research Suggests Sweet Potatoes Didn't Originate in the Americas

Indiana University

Sweet potatoes may seem as American as Thanksgiving, but scientists have long debated whether their plant family originated in the Old or New World. New research by an Indiana University paleobotanist suggests it originated in Asia, and much earlier than previously known.

Released:
21-May-2018 4:30 PM EDT

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