The antibiotic-free pigs roam freely on Niman Ranch in Iowa. Sarah Willis/courtesy Niman Ranch hide caption

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Sarah Willis/courtesy Niman Ranch

Antibiotic-Free Meat Business Is Booming, Thanks To Chipotle

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From An Israeli Kibbutz, A High-Priced Caviar Prized By Top Chefs

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A Tokyo sushi restaurant displays blocks of fat meat tuna cut out from a 269kg bluefin tuna. Yoshikazu Tsuno/AFP/Getty Images hide caption

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Yoshikazu Tsuno/AFP/Getty Images

Nuclear Tuna Is Hot News, But Not Because It's Going To Make You Sick

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Monster Turtle Fossil Discovered In Colombian Mine

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Researcher Hans Roy opens a core sample taken from the bottom of the Pacific Ocean. A core sample like this one contained bacteria that settled on the seafloor 86 million years ago. Bo Barker Jorgensen/Science/AAAS hide caption

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Bo Barker Jorgensen/Science/AAAS

Ancient Deep-Sea Bacteria Are In No Hurry To Eat

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Orca L112, also known as Victoria, was 3 years old when she washed up on the Washington coast. An investigation into her death has been inconclusive. Center for Whale Research hide caption

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Center for Whale Research

What Killed Orca Victoria? Some Point To Naval Tests

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Ape Apps: Orangutans Learn With iPads At Miami Zoo

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The calico lobster known as Calvin is shown in this photo provided by Boston's New England Aquarium. The lobster is dark with bright orange and yellow spots. Tony LaCasse/New England Aquarium hide caption

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Tony LaCasse/New England Aquarium

John Odenkirk holds up a snakehead. The fish can survive for long periods of time out of water as long as they're kept moist. They breathe air by gulping it, so they don't need to stay submerged. Sabri Ben-Achour/for NPR hide caption

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Sabri Ben-Achour/for NPR

'Frankenfish': It's What's For Dinner

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Eight Belles (far left) broke both of her front ankles after finishing second in the 134th Kentucky Derby in May 2008. She was later euthanized. Matthew Stockman/Getty Images hide caption

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Matthew Stockman/Getty Images

Horse Racing: America's Most Dangerous Game?

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On a recent Saturday, the Prothonotary warbler drew crowds of plugged-in bird watchers in New York's Central Park. sydphi via Flickr hide caption

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sydphi via Flickr

These Apps Are Going To The Birds, And People Who Watch Them

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An illustration of the Chinese Jurassic "pseudo-flea," which lived in the Middle Jurassic in northeastern China. Wang Cheng/Current Biology hide caption

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Wang Cheng/Current Biology

The Dinosaurs' Nemeses: Giant, Jurassic Fleas

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