For Pablo Escobar's Transplanted Hippos, Colombia's A Wonderland

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Author Plumbs The Human Psyche Through 'Animal Madness'

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Martha looks just as good today as she did in 1914. Elizabeth O'Brien/Smithsonian Institution hide caption

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Elizabeth O'Brien/Smithsonian Institution

Lone Passenger Pigeon Escapes Pie Pan, Lands In Smithsonian

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Michael Yezzi raises 1,000 pigs a year in Shushan, N.Y. He's worried about how to keep his farm safe from a disease that has no proven cure. Abbie Fentress Swanson for NPR hide caption

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Abbie Fentress Swanson for NPR

As Pig Virus Spreads, The Price Of Pork Continues To Rise

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The CRISPR enzyme (green and red) binds to a stretch of double-stranded DNA (purple and red), preparing to snip out the faulty part. Illustration courtesy of Jennifer Doudna/UC Berkeley hide caption

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Illustration courtesy of Jennifer Doudna/UC Berkeley

A CRISPR Way To Fix Faulty Genes

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A 6-foot-long electric eel is basically a 6-inch fish attached to a 5-1/2-foot cattle prod, researchers say. The long tail is packed with special cells that pump electricity without shocking the fish. Mark Newman/Getty Images/Lonely Planet Image hide caption

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Mark Newman/Getty Images/Lonely Planet Image

A Shocking Fish Tale Surprises Evolutionary Biologists

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New York Bill Would Ban Selfies With Tigers

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A curious cuttlefish stares back at the camera from inside The Smithsonian's National Zoo Invertebrate Exhibit. The exhibit, home to dozens of small aquatic and terrestrial species without backbones, closed on Sunday. Meghan Murphy/Smithsonian's National Zoo hide caption

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Meghan Murphy/Smithsonian's National Zoo

A mountain lion known as P-22 was recaptured in March by National Park Service biologists and treated for mange. Wildlife officials believe the cougar's ill health is the result of exposure to rat poison. National Park Service hide caption

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National Park Service

LA Mountain Lion A Poster Cat For California's Rat Poison Problem

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DNA from these crab plovers, collected in Djibouti, Africa, should help scientists figure out how the unusual species fits into the family tree, says the Smithsonian's Helen James. Maggie Starbard/NPR hide caption

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Maggie Starbard/NPR

Is Collecting Animals For Science A Noble Mission Or A Threat?

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