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Study Suggests That Dinosaurs Were Warm-Blooded

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Dinosaurs grew as fast as your average living mammal, according to a research paper published by Stony Brook University paleontologist Michael D’Emic, PhD. The paper, to published in Science on May 29, is a re-analysis of a widely publicized 2014 Science paper on dinosaur metabolism and growth that concluded dinosaurs were neither ectothermic nor endothermic—terms popularly simplified as ‘cold-blooded’ and ‘warm-blooded’—but instead occupied an intermediate category.

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Ancient DNA May Provide Clues into How Past Environments Affected Ancient Populations

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A new study by anthropologists from The University of Texas at Austin shows for the first time that epigenetic marks on DNA can be detected in a large number of ancient human remains, which may lead to further understanding about the effects of famine and disease in the ancient world.

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Lethal Wounds on Skull May Indicate 430,000 Year-Old Murder

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Research into lethal wounds found on a human skull may indicate one of the first cases of murder in human history—some 430,000 years ago—and offers evidence of the earliest funerary practices in the archaeological record.

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Global Climate on Verge of Multi-Decadal Change

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A new study, by scientists from the University of Southampton and National Oceanography Centre (NOC), implies that the global climate is on the verge of broad-scale change that could last for a number of decades.

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Hubble Video Shows Shock Collision Inside Black Hole Jet

Astronomers using the Hubble Space Telescope have discovered for the first time a rear-end collision between two high-speed knots of ejected matter from a supermassive black hole. This discovery was made while piecing together a time-lapse movie of a plasma jet blasted from a supermassive black hole inside galaxy 3C 264, located 260 million light-years from Earth in the constellation Leo.

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Blueprint for a Thirsty World From Down Under

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The Millennium Drought in southeastern Australia forced Greater Melbourne, a city of 4.3 million people, to successfully implement innovations that hold critical lessons for water-stressed regions around the world, according to findings by UC Irvine and Australian researchers.

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DNA Double Helix Does Double Duty in Assembling Arrays of Nanoparticles

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In a new twist on the use of DNA in nanoscale construction, scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and collaborators put synthetic strands of the biological material to work in two ways: They used ropelike configurations of the DNA double helix to form a rigid geometrical framework, and added dangling pieces of single-stranded DNA to glue nanoparticles in place.