NPR continues its conversations about The Race Card Project, where NPR Host/Special Correspondent Michele Norris asks people to send in six-word stories about race and culture. The submissions are personal, provocative and often quite candid.

When it comes to weaning, humans are weird.

Our closest relatives, chimpanzees and gorillas, breast-feed their offspring for several years. Some baby orangutans nurse until they are 7 years old.

But modern humans wean much earlier. In preindustrial societies, babies stop nursing after about two years. Which raises the question: How did we get that way? When did we make the evolutionary shift from apelike parenting to the short breast-feeding period of humans?

Israeli army Capt. Barak Raz climbs a metal staircase to the top of a high concrete wall that is part of Israel's West Bank barrier. From his perch, he overlooks both the Palestinian village of Bil'in and Modin Illit, the largest Jewish settlement in the West Bank, with some 50,000 residents.

The barrier here used to be a fence. After many confrontations with Israeli soldiers, Palestinian villagers won a court case, and the fence was moved off some of their land. But since the barrier was moved closer to an Israeli settlement, it was rebuilt as a wall.

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George Plimpton boxed with Archie Moore, played quarterback for the Detroit Lions and played percussion for the New York Philharmonic. He did these jobs and many others as an amateur. Plimpton was a professional writer. A new documentary about his life makes the case that Plimpton's best story was his own story, as NPR's Joel Rose reports.

JOEL ROSE, BYLINE: When you listen to George Plimpton's voice, it's like hearing echoes of a New York that no longer exists.

After five marathon sessions debating 150 proposed amendments, the Senate Judiciary Committee approved a landmark rewriting of the nation's immigration laws this week — and the bill emerged largely intact.

Three Republicans voted with the panel's 10 Democrats on Tuesday night to forward the bill to the full Senate. That strong showing followed a wrenching choice for Democrats on the committee: whether to risk shattering support for the bill by amending it to recognize equal rights for same-sex couples.

How It Played Out

Now it's Heather French Henry's turn.  The former Miss America has joined a list of half a dozen party activists or leaders waiting for Kentucky Secretary of State Alison Lundergan Grimes to decide whether she'll run in 2014 against Mitch McConnell for his U.S. Senate seat.

Kentucky’s economy remains steeped in agriculture related professions.  Sometimes the rural way of life intersects with an urban traveler.  Farmers across Kentucky are trying their best to get equipment into the fields.  Sometimes, it requires a trip down a roadway.  Triple A reports in 2012 there were 192 collisions in Kentucky involving farm equipment.  Bluegrass Triple A Spokesman Christopher Oakford says slow moving tractors have a legal right to use the roads.

A far western Kentucky welcome center takes a top honor today.  The Whitehaven Welcome Center in McCracken County is being recognized as the state’s best maintained rest area for 2012.  Maintenance Foreman Ronnie Wilson has worked at the Paducah facility for some 26 years.  “I’ve got a bunch of good people working for me that works hard, you know, take pride in what they do.  That’s the only way you could win it, to do that,” said Wilson.

Chuck used to sell marijuana in California. But the legalization of medical marijuana in the state meant he was suddenly competing against hundreds of marijuana dispensaries. So he moved to New York, where marijuana is still 100 percent illegal. Since making the move, he says, he's quadrupled his income. (For the record: His name isn't really Chuck.)

Scientists have completed an unusual survey: a census of the fungi that inhabit different places on our skin. It's part of a big scientific push to better understand the microbes that live in and on our bodies.

"This is the first study of our fungi, which are yeast and other molds that live on the human body," says Julie Segre, of the National Human Genome Research Institute, who led the survey.