Short Wave

There's a biodiesel boom happening! It's fueled by incentives and policies intended to cut greenhouse emissions, and is motivating some oil companies like World Energy in Paramount, California to convert their refineries to process soybean oil instead of crude. NPR's food and agriculture correspondent Dan Charles explains why farmers are happy, bakers are frustrated and people who want to preserve the world's natural forests are worried. Email the show at shortwave@npr.org.

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The United States is on the verge of dramatically expanding the availability of COVID-19 vaccine boosters to shore up people's immune systems. As NPR health correspondent Rob Stein reports, the Food and Drug Administration is poised to authorize the boosters of the Moderna and Johnson & Johnson vaccines. Still, many experts argue boosters aren't needed because the vaccines are working well and it would be unethical to give people in the U.S. extra shots when most of the world is still waiting for their first.

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Our colleagues at All Things Considered chatted with neuroscientist Nina Kraus about her new book Of Sound Mind. She shares how our brains process and create meaning from the sounds around us.

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Along certain coastlines near the equator, you can find a tree with superpowers. Mangroves provide a safe haven for a whole ecosystem of animals. They also fight climate change by storing tons of carbon, thanks to a spectacular above-ground network of tangled roots. Ecologist Alex Moore talks to guest host Maria Godoy about how mighty this tree is, and why it is under threat.

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A box of Twinkies, left alone for eight years, held some surprises for Colin Purrington. Upon having a sugar craving, combined with being "just so bored, with the pandemic," Purrington opened the box a few weeks ago. Like many people, Purrington believed Twinkies are basically immortal, although the official shelf life is 45 days. NPR's Nell Greenfieldboyce talked to Purrington and explains how two scientists got involved and started unraveling the mystery of the mummified Twinkie. (Encore episode)

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The COVID-19 has exposed longstanding and massive health disparities in the U.S., resulting in people of color dying at disproportionately higher rates than other races in this country. Today on the show, guest host Maria Godoy talks with Usha Lee McFarling about her reporting — how new funding and interest has led to increased attention to the topic of disparities in health care and health outcomes, but also left out or pushed aside some researchers in the field — many of them researchers of color.

You can follow Maria on Twitter @MGodoyH. Email ShortWave@NPR.org.

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Cockroaches - do they get a bad rap? Producer Thomas Lu teams up with self-proclaimed lesbian cockroach defender Perry Beasley-Hall to convince producer/guest host Rebecca Ramirez that indeed they are under-rated. These critters could number up to 10,000 species, but only about 30 are pesky to humans and some are beautiful! And complicated! And maybe even clean.

What insect do you think gets a bad rap? Write us at ShortWave@NPR.org. You can follow Thomas on Twitter @ThomasUyLu and Rebecca @RebeccalRamirez.

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How did humans evolve some key cooperative behaviors like sharing? NPR Science Correspondent Jon Hamilton reports back from a bonobo sanctuary in the Democratic Republic of the Congo where scientists are trying to answer that very question. (Encore episode)

If you have something nice to say - email the show at shortwave@npr.org!

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Why do some songs can stick with us for a long time, even when other memories start to fade? Science reporter (and former Short Wave intern) Rasha Aridi explains the neuroscience behind that surprising moment of, "Wow, how do I still remember that song?!"

Email the show at shortwave@npr.org.

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Humans have scalp hair. But why is human scalp hair so varied? Biological anthropologist Tina Lasisi wanted to find out. And while completing her PhD at Penn State University, she developed a better system for describing hair — rooted in actual science.

To hear more from Tina, check out these webinars: Why Care About Hair (https://bit.ly/3liJZ96) and How Hair Reveals the Futility of Race Categories (https://s.si.edu/3Dik6g8). And to dive deep into Tina's research, we recommend her paper, The constraints of racialization: How classification and valuation hinder scientific research on human variation (https://bit.ly/3DfDrOS)

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Our colleagues at the TED Radio Hour introduce us to forager and TikTok influencer Alexis Nikole Nelson. She shares how the great outdoors has offered her both an endless array of food options and an outlet to reconnect with her food and her culture.

Listen to the full TED Radio Hour episode, The Food Connection: https://n.pr/3DeRmEU

Follow TED Radio Hour and host Manoush Zomorodi on Twitter:
- TED Radio Hour: https://twitter.com/TEDRadioHour
- Manoush Zamorodi: https://twitter.com/manoushz

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Burnout has long been a problem among health care workers. The pandemic has only made it worse. Some were hopeful COVID vaccines would provide some relief, but that hasn't been the case. Now, health care workers are leaving the industry — and they're taking their expertise with them. Plenty of surveys say that burnout hurts patient care. NPR correspondent Yuki Noguchi spoke to medical workers who agree, the burnout they see on the job means that sometimes patients are not getting what they need.

Listen to our conversation with Dr. Arghavan Salles about burnout: https://n.pr/3CYimbq

Reach the show by emailing shortwave@npr.org.

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A paper published recently in the journal Science finds similarities between the babbling of human infants and the babbling of the greater sac-winged bat (Saccopteryx bilineata) — a small species of bat that lives in Central and South America. As science correspondent Geoff Brumfiel reports, the researchers believe both bats and humans evolved babbling as a precursor to more complex vocal behavior like singing, or, in the case of people, talking.

Wondering what similarities humans have to other animals? Email the human animals at shortwave@npr.org. We might dig up some answers.

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People are likely to be confused by common climate change terms like "mitigation" and "carbon neutral," according to a recent study. So how can everyone do a better job talking about climate change so that no one's left confused? NPR climate correspondent Rebecca Hersher tells us the key turns out to be pretty simple.

Read more of Rebecca's reporting on climate jargon: https://n.pr/2XdfYOC
Read the study: https://bit.ly/3Adj8QT

You can always reach the show by emailing shortwave@npr.org — but please, hold the jargon.

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Suicide was the 11th leading cause of death in the U.S. in 2020, according to the most current data. But research shows that suicide is preventable. Host Emily Kwong talks with NPR health correspondent Rhitu Chatterjee about the signs that someone you know may be thinking about dying, the ways you can support them, and how to possibly prevent suicide. (Encore episode.)

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Based on early estimates, as many as 10,600 large sequoias were killed in last year's Castle Fire — up to 14% of the entire population. The world's largest trees are one of the most fire-adapted to wildfires on the planet. But climate change is making these fires more extreme than sequoias can handle. It's also worsening drought that is killing other conifer trees that then become a tinder box surrounding the sequoias, reports climate correspondent Lauren Sommer. Scientists warn that giant sequoias are running out of time and they're racing to save them.

Read more of Lauren's reporting on sequoias: https://n.pr/39IX84M


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Will Stone is a science reporter for NPR. He's been reporting about the pandemic for a while now, so he knows the risks of a breakthrough infection, is vaccinated, and follows COVID guidelines as they change. Nonetheless, he got COVID - and today on the show, Will shares what he learned about his breakthrough infection, and what he wish he'd known before his "mild" case.

For more of Will's reporting, check out "I Got A 'Mild' Breakthrough Case. Here's What I Wish I'd Known"

(https://www.npr.org/sections/health-shots/2021/09/12/1036356773/i-got-a-mild-breakthrough-case-heres-what-i-wish-id-known)

You can follow Will on Twitter @WStoneReports and Rhitu @RhituC. Email Short Wave at ShortWave@NPR.org.

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In December, NASA is scheduled to launch the huge $10 billion James Webb Space Telescope, which is sometimes billed as the successor to the aging Hubble Space Telescope. NPR correspondents Rhitu Chatterjee and Nell Greenfieldboyce talk about this powerful new instrument and why building it took two decades.

For more of Nell's reporting on the telescope, check out "NASA Is Launching A New Telescope That Could Offer Some Cosmic Eye Candy."

(https://www.npr.org/2021/09/16/1036600340/nasa-is-launching-a-new-telescope-that-could-offer-some-cosmic-eye-candy)

You can follow Rhitu on Twitter @RhituC and Nell @Nell_Sci_NPR. Email Short Wave at ShortWave@NPR.org.

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Some of the world's best artificial waves are happening hundreds of miles from the ocean—in Waco, Texas. They're so good, they're attracting top professionals, casual riders and a science correspondent named Jon Hamilton. Jon's been following the wave technology for years and says the progress is huge. These days, pro surfers are coming from all over to try out Waco's "Freak Peak."

Read more of Jon's reporting on artificial waves: https://n.pr/3zAX95k

Wondering what insights science has to offer for other sports? Drop us a line at shortwave@npr.org.

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In the early 1900s, the Whitney South Sea expedition gathered 40,000 bird specimens for the American Museum of Natural History. The collection is an irreplaceable snapshot of avian diversity in the South Pacific, but is missing key geographic data. To solve this mystery, student researchers dug into field journals to determine where birds from one island came from.

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With booster shots on the horizon for some people, one of the biggest questions is: Am I still protected against COVID-19 if I've only had two doses of the vaccine? As science correspondent Michaeleen Doucleff reports, the answer is...complicated.

Read more of Michaeleen's reporting on COVID immunity: https://n.pr/2XIQ6KX

Reach the show by emailing shortwave@npr.org.

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Many people are afraid of needles in some capacity — about 1 in 10 experience a "high level" of needle fear, says clinical psychologist Meghan McMurtry. But that fear is often underrecognized or misunderstood. That's why today's show is all about needle fear: what it is, tools to cope, and why it's important to address beyond the pandemic.

Some strategies Meghan suggests to help cope with the fear of needles:

- the CARD System for adults: bit.ly/3nHIKlw
- muscle tension technique: bit.ly/3CBki9Z

Listen to Tom's reporting on needle fear: https://truestoriesinsound.wordpress.com/2021/08/09/needle-phobia/

Reach the show by emailing shortwave@npr.org.

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Fatima's Great Outdoors, a new children's book, centers on a girl named Fatima, who's struggling to adjust to her new life in the U.S. But on her very first camping trip with her family,
Fatima unexpectedly discovers courage and joy in the outdoors. Today on the show, Emily talks to Ambreen Tariq about her new book and her social media initiative, BrownPeopleCamping. For Tariq, both efforts are a part of a common vision — to increase diversity in the outdoors and challenge definitions of what it means to belong in nature.

This conversation is part of NPR's collaboration with the Library of Congress National Book Festival.

You can email us at shortwave@npr.org.

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It is found in only one lake in the world, never grows up, and occasionally takes bites of its friends: who could we be talking about? The axolotl of course! With some help from Dr. Luis Zambrano, producer Berly McCoy tells us all about this remarkable creature and the ongoing efforts to protect axolotls from extinction.

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Millions of people rely on subways for transportation. But as the world warms, climate-driven flooding in subways is becoming more and more common. NPR correspondents Lauren Sommer and Rebecca Hersher talk about how cities across the world are adapting.

For more of Rebecca's reporting on climate-driven flooding, check out "NYC's Subway Flooding Isn't A Fluke. It's The Reality For Cities In A Warming World."

(https://www.npr.org/2021/09/02/1021185475/climate-change-means-more-subway-flooding-worldwide-like-new-york-just-experienc)

You can follow Lauren on Twitter @lesommer and Rebecca @rhersher. Email Short Wave at ShortWave@NPR.org.

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In rare cases, the delta variant of the coronavirus is causing vaccinated people to get sick — so-called "breakthrough infections." Now researchers are asking: Could these infections lead to long COVID, when symptoms last weeks and months? Today, science correspondent Rob Stein makes sense of the latest data, explaining what we know so far about long COVID in vaccinated people.

Read more of Rob's reporting here: https://www.npr.org/sections/health-shots/2021/09/13/1032844687/what-we-know-about-breakthrough-infections-and-long-covid

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A new report from the Center for American Progress finds that nearly half of transgender people have experienced mistreatment at the hands of a medical provider. NBC OUT reporter Jo Yurcaba explains the long-term impacts of this discrimination, plus a few potential solutions.

• "Nearly half of trans people have been mistreated by medical providers, report finds," NBC OUT

• "Protecting and Advancing Health Care for Transgender Adult Communities," Center for American Progress

Follow Brit (@bnhanson) and Jo (@joyurcaba) on Twitter, and email the show at shortwave@npr.org.

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Twenty years later, first responders during the 9/11 attacks have an increased risk of getting some kinds of cancer. But, research shows that they're also more likely to survive. Host Emily Kwong talks to NPR correspondent Allison Aubrey about why.

Read more about Allison's reporting here.

You can follow Emily on Twitter @EmilyKwong1234 and Allison @AubreyNPR. Email Short Wave at ShortWave@NPR.org.

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Another destructive fire season has Western states searching for ways to prevent it. As climate correspondent Lauren Sommer reports, some answers might lie in the Southeastern U.S. The region leads the country in setting controlled fires — burns to clear vegetation that becomes the fuel for extreme fires.

Read more of Lauren's reporting on wildfire prevention.
(https://www.npr.org/2021/08/31/1029821831/to-stop-extreme-wildfires-california-is-learning-from-florida)

And check out our previous episode on cultural burns here.
(https://www.npr.org/2021/07/21/1018886770/managing-wildfire-through-cultural-burns)

Email the show at shortwave@npr.org.

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Manufacturers can expect to face unforeseen hurdles when they begin to mass-produce a brand new pharmaceutical product, and in a pandemic, there are bound to be supply chain problems as well. But in late 2020, Pfizer was delivering fewer doses than the government expected and then-federal officials told NPR they did not know why.

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The universe is so much bigger than what people can see, and astrophysicist Priyamvada Natarajan is trying to figure out that which we can not see. Producer Rebecca Ramirez talks with Priya and reports on the theory about some of the secret scaffolding of the universe: dark matter.

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Today, we bid farewell to our founding host, Maddie Sofia!

In this special episode, the Short Wave team and some of our listeners remind Maddie of the huge impact she's had on all of us. There is laughter, a lot of crying, and so, so much appreciation for our duderino.

Maddie, may you come back into our orbit soon. We're so excited to cheer you on in your future adventures!

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Maddie and Emily get super nerdy one last time as they dive into the incredible world of nudibranchs. Not only are these sea slugs eye-catching for their colors, some of them have evolved to "steal" abilities from other organisms — from the power of photosynthesis to the stinging cells of their venomous predators. These sea slugs are going to blow your mind!

You can email Short Wave at shortwave@npr.org.

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We're marking Maddie's last week on Short Wave!

Today, Maddie wanted to highlight a COVID-related episode from earlier this year. The pandemic has been a big part of our coverage and this particular episode stands out.

We hear reflections from two emergency room health workers on the pandemic, how their lives have changed and their hopes as more and more people get vaccinated.

Tomorrow, a new episode!

Are you a healthcare worker who would be willing to share your experience with the Short Wave team? Email us at shortwave@npr.org.

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It's Day 2 of our trip down Maddie Sofia memory lane! Today's encore episode is all about how you're never really alone.

We look at the tiny mites that live on your skin — including your face. They come out at night and mate. And we're not totally sure what they eat. See? Don't you feel better already?

Researcher Megan Thoemmes tells us about the lives of these eight-legged creatures — and what they can tell us about ourselves.

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This week is our last with Maddie as a host, so we're spending it with a trip down memory lane. The first episode Maddie invites us to relive and enjoy is our first listener question episode on the science behind thrill-seeking. She talks to psychologist Ken Carter about why some people love to get scared.

Reach the show by emailing shortwave@npr.org.

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Going on a run and curious about how muggy it's going to be out? Maddie Sofia chats with producer Thomas Lu about relative humidity and why some meteorologists are telling us to pay more attention to dew point temperature, not relative humidity. Plus — how moisture in the air and temperature influence the way our body "feels" when we're outside.

Click here for the National Weather Service Heat Index chart referenced in the episode.

Follow Maddie on Twitter @maddie_sofia and Thomas @thomasuylu. You can email Short Wave at ShortWave@NPR.org.

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Sunflower sea stars play a key role in ocean ecosystems on the West Coast - and they are disappearing in record numbers. Science correspondent Nell Greenfieldboyce tells us about the plight of the Sunflower sea star and one biologist's unique fight to save them.

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Medical transition-related treatments like hormone replacement therapy are associated with overwhelmingly positive outcomes in terms of both physical and mental health for transgender people. But, it can be hard to know exactly how to get started. Reporter James Factora explains where to start, common misconceptions about HRT, and the importance of finding community through the process.

Read James' full reporting for VICE here: "A Beginner's Guide to Hormone Replacement Therapy."

(www.vice.com/en/article/dyv33x/how-to-start-hrt-hormone-replacement-therapy)

If you're just learning about hormone replacement therapy for the first time, welcome! We're so glad you're here. You might want to read about the basics before listening to this episode. We'll be here when you get back!

● "Overview of Feminizing Hormone Therapy," UCSF Transgender Care"

(https://transcare.ucsf.edu/guidelines/feminizing-hormone-therapy)

● "Overview of Masculinizing Hormone Therapy," UCSF Transgender Care

(https://transcare.ucsf.edu/guidelines/masculinizing-therapy)

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(Encore episode) Class is back in session. We're going "back to school" to dig a little deeper on a concept you were taught in school: states of matter. Today, Emily and Maddie explore OTHER states of matter — beyond solid, liquid, gas, and plasma. Martin Zwierlein, professor of physics at Massachusetts Institute for Technology (MIT), discusses his work with ultracold quantum gases and observing superfluid states of matter.

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NPR climate correspondent Lauren Sommer talks with Emily about a dilemma facing many local governments now. Should they develop in areas vulnerable to rising sea levels?

On today's episode, we look at Sunnyvale, California, in the San Francisco Bay Area. It's a situation complicated by a landowner that really wants to continue expanding there, Google.

In an episode last week, we asked who should be paying for climate change — taxpayers or private landowners with waterfront property?

For more on this story, including pictures and videos, click here.

Email the show at shortwave@npr.org.

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It's summer, which for some means spare time at the beach, splashing in the waves and...building sandcastles. On today's episode, Emily Kwong asks: Scientifically, what is the best way to make a sandcastle? What's the right mix of water and sand to create grand staircases and towers? Sedimentologist Matthew Bennett shares his research — and personal — insights. Happy building!

Wondering what science and engineering are behind other summertime activities? Or just want to share your greatest sandcastle creations? Shoot us an email at shortwave@npr.org.

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Facebook's campus on the shoreline of San Francisco Bay is at risk from rising sea levels. So is a nearby low-income community. That's raising questions about who should be paying for climate change. Taxpayers or private landowners (in this case, some of the world's largest tech companies) with waterfront property? NPR climate correspondent Lauren Sommer explains in the first of two episodes.

For more on this story, including pictures and videos, click here.

Email the show at shortwave@npr.org.

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(Encore episode) We chat with National Geographic Explorer and paleontologist Nizar Ibrahim about his team's discovery of the Spinosaurus, the first known swimming dinosaur. The discovery and subsequent modeling showing the effectiveness of the Spinosaurus's tail underwater were detailed in Nature.

And you can check out National Geographic's coverage here.

Our team would love to hear your dinosaur-themed episode ideas. Email us at shortwave@npr.org.

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In the last two weeks or so, the number of new daily COVID-19 cases in the United States has increased by about 40 percent. Compared to a year ago — when we didn't have the vaccine — we have three times the number of new cases on average.

NPR correspondent Allison Aubrey talks with Maddie about a hospital system in Mississippi that's struggling to find beds for patients, the push to get kids vaccinated, and booster shots for people who are immunocompromised.

You can always reach the show by emailing shortwave@npr.org.

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Last week, the U.N. published a landmark report — detailing the current state of global climate change. One thing's for sure, humans are causing a lot of this extreme weather by emitting greenhouse gases. NPR's Climate Correspondent Rebecca Hersher gives Emily three key takeaways from the report that might surprisingly help everyone feel a little more hopeful.

You can follow Rebecca on Twitter @RHersher and Emily @EmilyKwong1234. Email Short Wave at ShortWave@NPR.org.

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(Encore episode) The mirror self-recognition test has been around for decades. Only a few species have what it takes to recognize themselves, while others learn to use mirrors as tools. NPR science correspondent Nell Greenfieldboyce talks us through mirror self-recognition and why Maddie's dog is staring at her.

For more science reporting and stories, follow Nell on twitter @nell_sci_NPR. And, as always, email us at shortwave@npr.org.

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(Encore episode) It's another installment of our series, "Animal Slander," where we take a common phrase about animals and see what truth there is to it. The issue before the Short Wave court today: "Do cats deserve their aloof reputation?" We look at the evidence with cat researcher, Kristyn Vitale of Oregon State University.

Follow Maddie Sofia on Twitter @maddie_sofia and Emily Kwong @emilykwong1234. Email the show at shortwave@npr.org.

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(Encore episode) Joey Ramp's service dog, Sampson, is with her at all times, even when she has to work in a laboratory. It wasn't always easy to have him at her side. Joey tells us why she's trying to help more service animals and their handlers work in laboratory settings.

You can read more and see pictures of Joey and Sampson in our original episode page. And you can learn about the work Joey does with service animals and their handlers here. We first read about Joey in The Scientist.

Follow Sampson on Twitter @sampson_dog and host Maddie Sofia @maddie_sofia. Email the show at shortwave@npr.org.

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(Encore episode) Clive Wynne, founding director of the Canine Science Collaboratory at Arizona State University, draws on studies from his lab and others around the world to explain what biology, neuroscience, and genetics reveal about dogs and love. He's the author of Dog Is Love: Why and How Your Dog Loves You.

Follow host Maddie Sofia on Twitter @maddie_sofia. Email the show at shortwave@npr.org.

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