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Team digs up more of Michigan farm’s ‘Bristle mammoth’

Paleontologists conducted a second excavation at the Michigan farm where the skull, tusks, and dozens of intact bones of an ice age mammoth were pulled from the ground in late 2015. Nothing that...

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To fight drug resistance, make germs compete

Harnessing competition among pathogens inside a patient could help fight drug resistance, new research suggests. Researchers found that limiting a much-needed resource could pit pathogens against one...

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Massive database lists one-third of the world’s plants

Researchers have created the first complete list of all known vascular plant species in the Americas. The searchable database contains nearly 125,000 species representing one-third of all known...

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Dust mites defend their genome in a unique way

As a consequence of their tumultuous evolutionary history, the house dust mite developed a novel way to protect its genome from internal disruptions, a new genetic study suggests. House dust mites are...

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Opossums don’t like snow but have invaded N. Dakota

New research documents ongoing northward range expansion of the common Virginia opossum—and one unlucky opossum in particular. This individual opossum was first spotted in a suburban Grand Forks, North...

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U.S. forests could be storing tons and tons more carbon

A new study estimates the total amount of carbon currently accumulating in the topsoil of US forests undergoing two types of reforestation: actively replanting trees after distances like wildfires, or...

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For food-related emissions, this U.S. diet is the worst

On any given day, 20 percent of Americans account for nearly half of US diet-related greenhouse gas emissions, and eating lots of beef is largely responsible, according to a new study. To estimate the...

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Why whooping cough is making a comeback

The resurgence of whooping cough is the result of factors—including a phenomenon known as the honeymoon period—that began in the middle of the last century, long before the latest vaccines were...

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Energy-efficient light bulbs cost more in high-poverty areas

Energy-efficient light bulbs are more expensive and less available in high-poverty urban areas than in more affluent locations, according to a new study. Researchers explored disparities in the...

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Gulf of Mexico’s 2018 ‘dead zone’ could be size of Connecticut

A new forecast says this summer’s Gulf of Mexico “dead zone”—an area of low to no oxygen that can kill fish and other marine life—will be approximately 5,780 square miles, about the size of...

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Just 1 missing atom may lead to colon cancer

The development of an aggressive, early-onset form of colon cancer may come down to a single missing iron atom in a key DNA repair protein, according to new research. The findings, which will appear in...

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Polar oceans are hot spots for new fish species

The fastest rates of species formation have occurred at the highest latitudes and in the coldest ocean waters, according to a new analysis of the evolutionary relationships between more than 30,000...

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Too much CO2 robs milkweed of ‘medicine’ for monarchs

Mounting levels of atmospheric carbon dioxide lessen the medicinal properties of milkweed plants that protect monarch butterflies from disease, a new study shows. Milkweed leaves contain bitter toxins...

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Things aren’t looking good for the Amazon rainforest

The Amazon is likely to face continued warming in addition to possible multiyear droughts, according to a new study. The research suggests that primary ecosystem services—biodiversity, water cycling,...

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This kind of RNA could contribute to fatty liver

Scientists have uncovered a potential new role for long noncoding RNA in obesity and nonalcoholic fatty liver disease—an accumulation of too much fat in the liver that affects an estimated 64 million...

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U.S. forests could be storing tons and tons more carbon

A new study estimates the total amount of carbon currently accumulating in the topsoil of US forests undergoing two types of reforestation: actively replanting trees after distances like wildfires, or...

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Migrating monarchs face new infection threat

Migrating monarchs may face increased exposure to disease at sites where other monarchs no longer migrate to Mexico and instead breed year-round on patches of an exotic garden plant. With migration...

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How single cells can shed light on ‘fungal dark matter’

Researchers have developed a way to generate genomes from single cells of uncultivated fungi. Fungi can be found on forest floors, in swamps, and in houses, ranging in size from smaller than the period...

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‘Optimal mating distance’ really does lead to super fit offspring

New research may confirm a long held evolutionary theory about the ideal amount of genetic difference between parents. The theory predicts that the fitness of an individual is maximized when the...

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Which is worse: Food waste or emissions from refrigeration?

New research weighs the emissions trade-offs of creating an unbroken refrigerated supply chain, or “cold chain,” in sub-Saharan Africa Few inventions have had a greater impact on our daily lives, and...

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