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Researchers recently investigated levels of methylmercury in a small sampling of commercial dog foods and found good news for dog owners. Of the 24 diets tested, only three were positive for low concentrations of total mercury, and only one of those contained detectable methylmercury.

Researchers recently investigated levels of methylmercury in a small sampling of commercial dog foods and found good news for dog owners. Of the 24 diets tested, only three were positive for low concentrations of total mercury, and only one of those contained detectable methylmercury.

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Regular infusions of an antibody that blocks the HIV binding site on human immune cells may have suppressed levels of HIV for up to four months in people undergoing a short-term pause in their antiretroviral therapy (ART) regimens. Results of the Phase 2, open-label study indicate the antibody, known as UB-421, was safe and did not induce the production of antibody-resistant HIV.

Regular infusions of an antibody that blocks the HIV binding site on human immune cells may have suppressed levels of HIV for up to four months in people undergoing a short-term pause in their antiretroviral therapy (ART) regimens. Results of the Phase 2, open-label study indicate the antibody, known as UB-421, was safe and did not induce the production of antibody-resistant HIV.

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Paleontologists have discovered a new species of meat-eating mammal larger than any big cat stalking the world today. Larger than a polar bear, with a skull as large as that of a rhinoceros and enormous piercing canine teeth, this massive carnivore would have been an intimidating part of the eastern African ecosystems occupied by early apes and monkeys.

Paleontologists have discovered a new species of meat-eating mammal larger than any big cat stalking the world today. Larger than a polar bear, with a skull as large as that of a rhinoceros and enormous piercing canine teeth, this massive carnivore would have been an intimidating part of the eastern African ecosystems occupied by early apes and monkeys.

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2018 was the worst year for red tide in more than a decade. A new study reveals what made it so severe.

2018 was the worst year for red tide in more than a decade. A new study reveals what made it so severe.

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A team of researchers has developed a neural network, a form of artificial intelligence, that can read scientific papers and render a plain-English summary in a sentence or two.

A team of researchers has developed a neural network, a form of artificial intelligence, that can read scientific papers and render a plain-English summary in a sentence or two.

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Research by a team of the world's leading oceanographers has proposed a new explanation for how the ocean absorbs and stores carbon, solving a riddle that has long puzzled scientists. It's well established that carbon in the atmosphere is absorbed by phytoplankton and transported to the ocean floor as the microscopic organisms die and sink by gravity through the water.

Research by a team of the world's leading oceanographers has proposed a new explanation for how the ocean absorbs and stores carbon, solving a riddle that has long puzzled scientists. It's well established that carbon in the atmosphere is absorbed by phytoplankton and transported to the ocean floor as the microscopic organisms die and sink by gravity through the water.

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A new study begins to resolve the scale and pace of change during the first phases of animal domestication beyond the Fertile Crescent. To reconstruct this history, the authors turned to an unusual source: urine salts left behind by humans and animals.

A new study begins to resolve the scale and pace of change during the first phases of animal domestication beyond the Fertile Crescent. To reconstruct this history, the authors turned to an unusual source: urine salts left behind by humans and animals.

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Physical traits and behaviors that make a lizard sexy -- features used to attract potential mates and fend off competitors -- may be important enough that they do not change in the face of stress, according to researchers.

Physical traits and behaviors that make a lizard sexy -- features used to attract potential mates and fend off competitors -- may be important enough that they do not change in the face of stress, according to researchers.

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Based on the analysis of the genomes of more than a dozen flightless birds, including an extinct moa, researchers found that while different species show wide variety in the protein-coding portions of their genome, they appear to turn to the same regulatory pathways when evolving flight loss.

Based on the analysis of the genomes of more than a dozen flightless birds, including an extinct moa, researchers found that while different species show wide variety in the protein-coding portions of their genome, they appear to turn to the same regulatory pathways when evolving flight loss.

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An international collaboration has found for the first time that two new epigenetic regulators, TAF5L and TAF6L, maintain self-renewal of embryonic stem cells. The scientists also found that these proteins activate c-Myc (a well-known cancer gene), and its regulatory network. This is the first time scientists have been able to show what these regulators do and how they control gene expression.

An international collaboration has found for the first time that two new epigenetic regulators, TAF5L and TAF6L, maintain self-renewal of embryonic stem cells. The scientists also found that these proteins activate c-Myc (a well-known cancer gene), and its regulatory network. This is the first time scientists have been able to show what these regulators do and how they control gene expression.

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