Science, Quickly

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Hippo Dung Fouls Up Freshwater Fisheries Jun 14, 2018

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Hippo poop is piling up in Tanzania’s freshwater fisheries—which is bad news for biodiversity, and deleterious for the dinner plate. Jason G. Goldman reports.

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A Litmus Test for Bad Breath Jun 13, 2018

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Researchers engineered a portable device that detects even the tiniest trace of hydrogen sulfide—one of the primary offenders in bad breath. Karen Hopkin reports.

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Prez (of AMA) Issues Call to Arms-Science Jun 11, 2018

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At the AMA annual meeting the organization's president petitioned for an evidence-based, science-driven analysis of gun violence and solutions.

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Powder Pulls Drinking Water from Desert Air Jun 08, 2018

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A structure known as a metal organic framework traps water vapor by night, then releases it when heated the next day. Christopher Intagliata reports.

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Ancient Clan War Explains Genetic Diversity Drop Jun 06, 2018

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Some 5,000 to 7,000 years ago, the diversity of Y chromosomes plummeted. A new analysis suggests clan warfare may have been the cause. Christopher Intagliata reports.

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Saying "This May Hurt" May Make It Worse Jun 05, 2018

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Warning a child that something, like a vaccine shot, will hurt can actually increase their perception of the pain.

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Mongooses Gift Grooming for Guard Duty Jun 01, 2018

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Humans and other primates often reciprocate good deeds. A new study suggests a nonprimate, the dwarf mongoose, does so, too, even after a delay. Christopher Intagliata reports.

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Some Trees Beat Heat with Sweat May 31, 2018

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During extreme heat waves, a species of eucalyptus copes by releasing water and taking advantage of evaporative cooling. Other trees may do the same.

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Computers Go Head-to-Head with Humans on Face Recognition May 30, 2018

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The best facial-recognition algorithms are now as good as the best forensic examiners are. But the best results come by combining human and computer skills. Christopher Intagliata reports.

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Pinnipeds Don't Appreciate Biped Disturbance May 29, 2018

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Sea lions and fur seals in Uruguay have become a tourist attraction—but the animals have become less, not more, accepting of humans. Jason G. Goldman reports.

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