Science, Quickly

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Fishes' Lateral Lines Sense Pressure and Predators Feb 25, 2015

Show notes

Flow sensors on the bodies of many fishes act like a hydrodynamic antenna, picking up signals about the flow of water around them. Gretchen Cuda Kroen reports

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Beaver Teeth Have Iron Advantage Feb 23, 2015

Show notes

Beaver enamel is rich in iron—which is even more effective than fluoride at staving off cavities. Christopher Intagliata reports

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Hot Chili Peppers Motivate Mice to Burn Fat Feb 17, 2015

Show notes

Rodents fed capsaicin voluntarily exercised more than their furry friends on a lower-heat diet. Karen Hopkin reports

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Humans off the Hook for Alaskan Mastodon Extinction Feb 16, 2015

Show notes

A reexamination of museum mastodon specimens provides evidence that that last ones were gone from what's called the Beringia region well before any humans showed up. Emily Schwing reports

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Contraception Could Prevent 15 Million Unwanted Pregnancies Annually Feb 12, 2015

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Fifteen million unwanted pregnancies in 35 low- and middle-income countries could be avoided if women had access to and freedom to use contraception. Cynthia Graber reports

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Preindustrial Pollution Pestered Peru Feb 11, 2015

Show notes

Ice cores show a sudden rise in heavy metal air pollution in South America 240 years before the industrial revolution, probably due to metallurgy and mining. Karen Hopkin reports

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Subway DNA Survey Finds Microbes, Mozzarella and Mystery Feb 10, 2015

Show notes

Scientists sequenced genetic material found in all 468 New York City subway stations, and nearly half matched no known organism. Christopher Intagliata reports

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Cities Could Win Economically by Losing Olympics Feb 06, 2015

Show notes

According to sports economist Andrew Zimbalist, most cities that win the right to host the Olympics will spend far more to prepare for the games than they estimate in their winning bid. Steve Mirsky reports

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Drones Spy On Birds in Flight Feb 03, 2015

Show notes

Quadcopters appear to be a relatively benign tool to study the behavior and numbers of wetland birds. Christopher Intagliata reports

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Save Libyan Archaeology Plea Issued Feb 02, 2015

Show notes

Savino di Lernia, director of the Archaeological Mission in the Sahara at the Sapienza University of Rome, says violence and unrest threaten World Heritage sites and researchers. Cynthia Graber reports

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