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JOHN DANKOSKY, HOST:

This is SCIENCE FRIDAY. I'm John Dankosky, sitting in for Ira Flatow. This time of year, wildlife conservationists warn you to look out for migrating turtles crossing the road. OK, what if the turtle is nearly eight feet long, the size of a compact car?

The first sneak peak a few weeks back inside journalist David Maraniss' highly anticipated biography of President Obama served up glimpses of the president as a young man in romantic relationships, with information gleaned from early girlfriends.

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JOHN DANKOSKY, HOST:

This is SCIENCE FRIDAY. I'm John Dankosky. Are you a fan of crunchy, crispy foods? Well, I am. In fact...

(SOUNDBITE OF CHEWING)

DANKOSKY: Do you hear that? Yeah, that's a potato chip. It sounds pretty good, doesn't it? Now, no matter where you are in the world, you'll probably find that that crunch is popular with the locals. Think about it: tortilla chips, crispy chicken, fried calamari, biscotti, tempura, falafel, pekora - mmm, pekora.

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JOHN DANKOSKY, HOST:

This is SCIENCE FRIDAY. I'm John Dankosky. What if I told you I was going to cook up a pasta sauce using bananas, honey, roses, apples, melon rinds, vanilla, berries, sweaty cheese, peaches, chocolate, lawn clippings, lemongrass and a little dash of wasabi for good measure? Sounds pretty disgusting, right? Well, believe it or not, all those flavors I've just mentioned are components of a taste you probably already love: tomatoes. The taste of a tomato is really that complicated.

By any definition, the situation in Syria is atrocious with an estimated 10,000 people killed since the uprising started more than a year ago. The latest international effort to reach a ceasefire is on the ropes.

And, last night, during an interview with CNN's Christiane Amanpour, the U.N. Secretary-General Ban Ki-moon seem to give little hope for a resolution.

Here's news that could affect both the economy and the presidential race:

Consumer confidence has improved "in each of the past nine monthly surveys" and is now at "its highest level since October 2007," according to the latest Thomson Reuters/University of Michigan Survey of Consumers. The most recent recession officially began in December 2007, and lasted into early summer 2009.

NPR's new series explores how the "American Dream" is evolving during a period of economic uncertainty. Host Michel Martin talks with NPR Senior Business Editor Marilyn Geewax about the series, and whether home ownership is still at the heart of the "American Dream," even after the historic collapse of the housing market.

The Navy SEALs are known for conducting some of the U.S. military's most dangerous missions. But they're not necessarily known for their diversity. Host Michel Martin speaks with two men trying to bring people of different backgrounds to the elite military force.