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The Biology Of Birds Of Prey

The Snake River area near Boise, Idaho has one of the world's highest concentrations of nesting raptors. Biologists Mark Fuller, Julie Heath & Chris Parish join Ira Flatow for a look at raptor biology, and the threats the birds are facing. Plus, bringing back the California condor.
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Fires And Invasive Grass Threaten American West

Cheatgrass, an invasive weed, is choking out native sagebrush in the Great Basin--and setting the stage for hotter, more catastrophic fires there. Jen Pierce, an expert on ancient fires, and Mike Pellant, of the Great Basin Restoration Initiative, talk about how fires are reshaping landscapes in the American West.
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Analysing The Evidence On DNA

When police find DNA at a crime scene, the amount and how it's handled are crucial components in solving a case. Greg Hampikian, Director of the Idaho Innocence Project, discusses the use and misuse of DNA analysis, and why he says all DNA evidence is not created equal.
NPR

NASA's Curiosity Finds Water Once Flowed On Mars

NASA's newest Mars rover snapped photos of rocky outcroppings that jut out from the alien soil. Scientists say they look like the remnants of an ancient stream bed where water once flowed on the surface of the red planet.
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Biodegradable Electronics Could End Toxic Trash

A future in which a discarded cell phone dissolves into a landfill, rather than living on for thousands of years as garbage, may not be that far off. Melissa Block talks with John A. Rogers, a 2009 MacArthur Fellow and professor of engineering at University of Illinois, about his research into "transient electronics."
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Health Benefits Of Tea: Milking It Or Not

In many cultures, milk and tea are natural pairs, while in others, not so much. But if you're drinking tea for health, you might want to hold the milk, because there is some evidence it diminishes the benefits.
NPR

Streams Of Water Once Flowed On Mars; NASA Says Photos Prove It

NASA's Curiosity rover has found definitive proof that water once ran across the surface of Mars, the agency announced today. NASA scientists say that new photos from the rover show rocks that were smoothed and rounded by water. The rocks are in a large canyon and nearby channels that were cut by flowing water, making up an alluvial fan.

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