The Salt The Salt is a blog from the NPR Science Desk about what we eat and why we eat it. We serve up food stories with a side of skepticism that may provoke you or just make you smile.

Some of the cattle grazing on the Persson Ranch are tracked using blockchain technology, which may allow consumers to know where their meat comes from and more. Kamila Kudelska/Wyoming Public Radio hide caption

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Kamila Kudelska/Wyoming Public Radio

Where's The Beef? Wyoming Ranchers Bet On Blockchain To Track It

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A female blue orchard bee forages for nectar and pollen on Phacelia tanacetifolia flowers, also known as blue or purple tansy. Blue orchard bees are solitary bees that help pollinate California's almond orchards. Josh Cassidy/KQED hide caption

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Josh Cassidy/KQED

Will Lambek, left, interprets for Enrique Balcazar, a Migrant Justice activist who helped negotiate the fair labor and living standards agreement with Ben & Jerry's. John Dillon/Vermont Public Radio hide caption

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John Dillon/Vermont Public Radio

This laser unit is one of six that repel thieving birds from the blueberry fields of Meduri Farms near Jefferson, Ore. Tom Banse/Northwest News Network hide caption

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Tom Banse/Northwest News Network

Growers Are Beaming Over The Success Of Lasers To Stave Off Thieving Birds

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Fresh Fest co-founders Day Bracey (left) and Mike Potter (right) visit with Chris Harris, owner of Black Frog Brewery in Holland, Ohio, near Toledo. Jeff Zoet/Courtesy Day Bracey hide caption

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Jeff Zoet/Courtesy Day Bracey

The Feed the Future Tworore Inkoko, Twunguke project hosts a meeting in the Gataraga sector of Rwanda to recruit farmers to grow chickens. If the farmers commit to four days of training and pass a competency test, they are given a backyard coop worth about $625, as well as the means to obtain 100 day-old chicks, vaccines, feed and technical advice. Emily Urban/NPR hide caption

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Emily Urban/NPR

Louisiana crawfish caught in waters in and around Berlin are on display at Fisch Frank fish restaurant in Berlin. They are an invasive species and authorities recently licensed a local fisherman to catch them and sell them to local restaurants. Carsten Koall/Getty Images hide caption

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Carsten Koall/Getty Images

For Berlin, Invasive Crustaceans Are A Tough Catch And A Tough Sell

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Wild rice grows along the edges of the Kakagon River in Wisconsin. Joe Proudman/Courtesy of University of California Davis hide caption

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Joe Proudman/Courtesy of University of California Davis

Climate Change Threatens Midwest's Wild Rice, A Staple For Native Americans

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A small new study shows that successful dieters had an abundance of a bacteria called Phascolarctobacterium, whereas another bacteria, Dialister, was associated with a failure to lose weight. sorbetto/Getty Images hide caption

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sorbetto/Getty Images

Diet Hit A Snag? Your Gut Bacteria May Be Partly To Blame

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The European Court of Justice ruled this week that genetic engineering methods - such as the use of certain applications of the gene cutter CRISPR - should be regulated as genetically engineered foods. Gregor Fischer/Getty Images hide caption

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Gregor Fischer/Getty Images

Along the back of this field of sugar snap peas, sunflowers and bachelor buttons at Oxbow Farm & Conservation Center is a buffer of maturing big-leaf maples and red-osier dogwoods. It's a combination of forest and thicket that the farm has left standing to help protect water quality in the river and aquifer. Oxbow Farm & Conservation Center hide caption

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Oxbow Farm & Conservation Center

New technologies and a changing climate are altering the way apples are grown in places like New York's Hudson Valley and across the country. Jake Rajs/Getty Images hide caption

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Jake Rajs/Getty Images

A Few More Bad Apples: As The Climate Changes, Fruit Growing Does, Too

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Bubble tea, or boba, features large tapioca balls at the bottom meant to be sucked up through a plastic straw. Vendors say paper straws don't always work as well, and they're more expensive. Samantha Shanahan/KQED hide caption

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Samantha Shanahan/KQED

San Francisco Is Poised To Ban Plastic Straws. That's Got Bubble Tea Shops Worried

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Hell's Backbone Grill is located in Boulder, Utah, about 250 miles south of Salt Lake City. The restaurant's owners are fighting Trump's plans to slash the size of nearby Grand Staircase-Escalante National Monument by more than half. Ace Kvale hide caption

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Ace Kvale

While some water filters are designed to screen out potentially deadly lead, many filters and bottled water with added minerals simply improve the taste of water. PhotoAlto/Antoine Arraou/Getty Images hide caption

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PhotoAlto/Antoine Arraou/Getty Images

Worker Esperanza Yanez gives a cow a full physical. She says she's learned to spot a sick cow just by looking at it. Esther Honig/Harvest Public Media hide caption

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Esther Honig/Harvest Public Media

Camas Davis is the founder of the Portland Meat Collective. "Because I now am involved in the processes that get that meat to my table, I just understand the value of it," she says. Cheryl Juetten/Penguin Random House hide caption

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Cheryl Juetten/Penguin Random House

Food Writer Becomes A Butcher To Better Understand The Value Of Meat

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This ancient piece of bread, more than 14,000 years old, is changing what archaeologists thought they knew about the history of food and agriculture. Amaia Arranz-Otaegui hide caption

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Amaia Arranz-Otaegui

Brick transfers heat to dough more slowly than steel, allowing both pizza crust and toppings to simultaneously reach perfection. Aldo Pavan/Getty Images hide caption

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Aldo Pavan/Getty Images

The way cows digest food takes a lot of energy and generates a lot of heat. This makes them lose their appetite and produce less milk. Mose Buchele/KUT hide caption

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Mose Buchele/KUT

As Milk Production Cools In Summer, Farmers Try To Help Cows Take The Heat

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Starbucks is opening its first deaf-friendly store in the U.S., where employees will be versed in American Sign Language and stores will be designed to better serve deaf people. Courtesy of Starbucks hide caption

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Courtesy of Starbucks