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Diminutive Peoples Took Different Paths to Petite Aug 03, 2015

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Adults of the west African Baka people and east African Efé and Sua peoples average less than five feet tall. But while the Efé and Sua are born small, the Baka have slow growth rates in infancy

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Forests Suck Up Less Carbon after Drought Jul 31, 2015

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Tree growth lags below normal for several years following droughts, a detail about carbon sequestration that climate models currently overlook. Christopher Intagliata reports

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"Imperfect" Vaccines May Aid Survival of Ultrahot Viruses Jul 30, 2015

Show notes

Certain vaccines prevent sickness and death, but don't block transmission—meaning they may actually give some viral strains an extra shot at survival. Christopher Intagliata reports

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What All the Screaming Is about Jul 29, 2015

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An analysis of the acoustical characteristics of screams found that the sounds are unusually rough, that is, they rapidly change in frequency, which has an alarming effect on the listener's brain

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Baseball Great Thanks Tommy John Surgery, Decries Its Frequency Jul 27, 2015

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In his induction speech at the Baseball Hall of Fame, pitcher John Smoltz hoped that the number of such procedures could be lessened in the future

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Appetizers Can Psychologically Spoil Your Appetite Jul 22, 2015

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Mediocre main dishes taste even worse when they follow delectable appetizers—an example of the so-called "hedonic effect." Erika Beras reports

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Many Overweight and Obese Teens Underestimate Their Weight Jul 21, 2015

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A survey of nearly 5,000 13- to 15-year-olds in the U.K. found that 40 percent of overweight and obese teens did not self-identify as “too heavy.” Cynthia Graber reports

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Alien Intelligence Search Gets Major New Push Jul 20, 2015

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Entrepreneur and former physicist Yuri Milner talks about the just-announced $100-million Breakthrough Listen Project to search for extraterrestrial technological civilizations

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Plankton Blooms Fuel Cloud Droplet Formation Jul 17, 2015

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The Southern Ocean is the cloudiest place on Earth, a condition caused in part by phytoplankton particles kicked up by sea spray. Christopher Intagliata reports

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Male Black Widows Strive for Mate's Monogamy Jul 16, 2015

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During courtship, male black widow spiders snip and bundle up the female's web in their own silk, which discourages other suitors from stopping by. Christopher Intagliata reports

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