Florida Battles With Tricky Removal Of Costly Muck In Indian River Lagoon

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The avocados on the right are Hass, America's favorite variety of the green fruit. At left are GEM avocados, the great-granddaughter of the Hass. GEM avocados grow well in California's Central Valley and, in taste tests, they scored better than the Hass in terms of eating quality. Ezra David Romero/Valley Public Radio hide caption

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Ezra David Romero/Valley Public Radio

A Washington, D.C., Metropolitan Police officer wears a camera during a news conference in 2014. Win McNamee/Getty Images hide caption

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Win McNamee/Getty Images

Scientists Hunt Hard Evidence On How Cop Cameras Affect Behavior

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The North Korean Electromagnetic Pulse Threat, Or Lack Thereof

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Instead Of Showing Off Wealth, Some Show Off Busy Schedules

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The elaborate Alnwick Garden in northeast England includes a "Poison Garden" that showcases plants with killer properties. Visitors are invited to look but not touch or even smell. Joanne Silberner for NPR hide caption

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Joanne Silberner for NPR

An image taken on July 19, 2013, by the wide-angle camera on NASA's Cassini spacecraft captured Saturn, its rings and planet Earth, which is the tiny dot in the lower right. NASA/JPL-Caltech/Space Science Institute hide caption

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NASA/JPL-Caltech/Space Science Institute

Postpartum hemorrhage is the leading cause of maternal deaths around the world. Thomas Fredberg/Getty Images/Science Photo Library hide caption

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Thomas Fredberg/Getty Images/Science Photo Library

Overlooked Drug Could Save Thousands Of Moms After Childbirth

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Swipe Right To Help Save The Northern White Rhino From Extinction

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Scientists placed two clusters of cultured forebrain cells side by side (each cluster the size of a head of a pin). Within days, the "minibrains" had fused and particular neurons (in green) migrated from the left side to the right side, as subsets of cells do in a real brain. Courtesy of Pasca lab/Stanford University hide caption

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Courtesy of Pasca lab/Stanford University

'Minibrains' In A Dish Shed A Little Light On Autism And Epilepsy

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(Left) A close-up view of a spirally fractured mastodon femur. (Right) A boulder discovered at the Cerutti Mastodon site in San Diego County thought to have been used by early humans as a hammerstone. Tom Démeré/San Diego Natural History Museum hide caption

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Tom Démeré/San Diego Natural History Museum

New Evidence Suggests Humans Arrived In The Americas Far Earlier Than Thought

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The Energy Star program started in 1992 to rate the efficiency of computer monitors and now covers dozens of product categories. Paul Sakuma/AP hide caption

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Paul Sakuma/AP

The small, red schisandra berry has a peculiar taste — five tastes, in fact, because it's considered to be at once sweet, sour, salty, bitter and pungent. Courtesy of Josef Brinckmann hide caption

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Courtesy of Josef Brinckmann