The good old reflex hammer (like this Taylor model) might seem like an outdated medical device, but its role in diagnosing disease is still as important as ever. Meredith Rizzo/NPR hide caption

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Meredith Rizzo/NPR

A tractor pulls a planter while distributing corn seed on a field in Malden, Ill. Two scientists agree that pesticide-laden dust from planting equipment kills bees. But they're proposing different solutions, because they disagree about whether the pesticides are useful to farmers. Bloomberg/Bloomberg via Getty Images hide caption

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Bloomberg/Bloomberg via Getty Images

Sometime between grade school and grad school, the brain's information highways get remapped in a way that dramatically boosts self-control. Thomas Trutschel/Photothek via Getty Images hide caption

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Thomas Trutschel/Photothek via Getty Images

As Brains Mature, More Robust Information Networks Boost Self-Control

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Daniel Fishel for NPR

Eating Chocolate, A Little Each Week, May Lower The Risk Of A Heart Flutter

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A groundskeeper at Pinecrest Gardens sprays pesticide to kill mosquitoes in Miami-Dade County, Fla., in 2016. Gaston De Cardenas/Miami Herald/TNS via Getty Images hide caption

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Gaston De Cardenas/Miami Herald/TNS via Getty Images

John Goodenough's work led to the lithium-ion battery, now found in everything from phones to electric cars. He and fellow researchers at the University of Texas, Austin say they've come up with a faster-charging alternative. Gabriel Cristóver Pérez/KUT hide caption

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Gabriel Cristóver Pérez/KUT

At 94, Lithium-Ion Pioneer Eyes A New Longer-Lasting Battery

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For children over 1 year old, pediatricians strongly recommend whole fruit instead of juice, because it contains fiber, which slows the absorption of sugar and fills you up the way juice doesn't. KathyDewar/Getty Images hide caption

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KathyDewar/Getty Images

Cabinet-card portrait of brain-injury survivor Phineas Gage (1823–1860), shown holding the tamping iron that injured him. Wikimedia hide caption

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Wikimedia

Why Brain Scientists Are Still Obsessed With The Curious Case Of Phineas Gage

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A scientist holds a bioprosthetic mouse ovary made of gelatin with tweezers. Northwestern University Feinberg School of Medicine hide caption

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Northwestern University Feinberg School of Medicine

Scientists One Step Closer To 3-D-Printed Ovaries To Treat Infertility

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A plasticine caterpillar glistens with moisture while awaiting potential predator attacks in the forest of Tai Po Kau, Hong Kong. Chung Yun Tak/Science hide caption

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Chung Yun Tak/Science

Scientists Glued Fake Caterpillars On Plants Worldwide. Here's What Happened

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Workers prepare to release thousands of fingerling Chinook salmon into the Mare Island Strait in Vallejo, Calif., in 2014. A new report names climate change, dams and agriculture as the major threats to the prized and iconic fish, which is still the core of the state's robust fishing industry. Justin Sullivan/Getty Images hide caption

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Justin Sullivan/Getty Images

An orangutan mother and her 11-month old infant in Borneo. Orangutans breast-feed offspring off and on for up to eight years. Tim Laman/Science Advances hide caption

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Tim Laman/Science Advances

Orangutan Moms Are The Primate Champs Of Breast-Feeding

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Tyrannosaurus rex jaws generated 8,000-pound bite forces and let the creature eat everything from duck-billed dinosaurs to triceratops. Scientific Reports hide caption

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Scientific Reports

Tyrannosaurus Rex's Bite Force Measured 8,000 Pounds, Scientists Say

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Advice For Your Dinner Party Stories: Keep It Familiar

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Scientists Raise Concern By Wanting To Create Synthetic Human Genomes

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