The youngest sex chromosomes on the block, and how to test a Zika vaccine without Zika cases

The youngest sex chromosomes on the block, and how to test a Zika vaccine without Zika cases

Strawberries had both male and female parts, like most plants, until several million years ago. This may seem like a long time ago, but it actually means strawberries have some of the youngest sex chromosomes around. What are the advantages of splitting a species into two sexes? Host Sarah Crespi interviews freelance journalist Carol Cruzan Morton about her story on scientists’ journey to understanding the strawberry’s sexual awakening. In 2016, experimental Zika vaccines were swiftly developed in response to the emergence of serious birth defects in the babies of infected woman. Two years after the height of Zika cases, there’s so little spread of the virus in the Americas that it has stymied vaccine trials. Researchers hope to overcome this hurdle with “human challenge experiments”—vaccinating people, then intentionally infecting them with Zika to see whether they’re protected from the virus. Meagan Cantwell talks with staff writer Jon Cohen about his news story that highlights the risks and rewards of human challenge experiments. This week’s episode was edited by Podigy. Download a transcript of this episode (PDF) Listen to previous podcasts. About the Science Podcast [Image: Public domain; Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

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Episoder(642)

Fighting deepfakes, and using bacteria to deliver medicine inside the body

Fighting deepfakes, and using bacteria to deliver medicine inside the body

First up on the podcast, Meagan Cantwell produced a segment with Contributing Correspondent Kai Kupferschmidt on the fight against deepfakes. Kupferschmidt talks with Hany Farid, professor at the Univ...

14 Mai 31min

A team effort to save a giant fish, the power of moonlight, and how scientists can navigate a tough political environment

A team effort to save a giant fish, the power of moonlight, and how scientists can navigate a tough political environment

First up on the podcast, along Brazil’s Juruá River, local residents have been working with scientists to manage a giant fish called the arapaima—affecting the land, the people, and the economy. Contr...

7 Mai 53min

Watching a spiders’ heart beat, epigenetic ethics, and what science biographies reveal about fame

Watching a spiders’ heart beat, epigenetic ethics, and what science biographies reveal about fame

First up on the podcast, Online News Editor David Grimm shares a batch of fun stories with podcast host Sarah Crespi—from spider hearts racing when traffic gets loud to a disease-preventing house. Sta...

30 Apr 46min

Cleaning up uranium mining, and how the heart avoids cancer

Cleaning up uranium mining, and how the heart avoids cancer

First up on the podcast, freelance science and environmental journalist Quentin Septer joins host Sarah Crespi to talk about a controversial uranium mine getting fast-tracked in South Dakota. Septer c...

23 Apr 30min

The normals | Episode 3

The normals | Episode 3

The final of a three-part limited Science Podcast series that looks at the history of normal human subjects in research In episode two, we heard what happened to the normals program after church volu...

21 Apr 33min

How to keep quantum computers cool, whether prediction markets harm public health, and podcasting on podcasting

How to keep quantum computers cool, whether prediction markets harm public health, and podcasting on podcasting

First up on the podcast, quantum computers require extremely low temperatures—less than 1°C away from absolute zero. But getting down to those temperatures has usually required dilution fridges using ...

16 Apr 50min

The Normals | Episode 2

The Normals | Episode 2

Last time on The Normals, we learned that in the 1950s, the National Institutes of Health (NIH) wanted to recruit many healthy volunteers for basic research. Two peace churches, the Mennonites and the...

14 Apr 27min

A chimpanzee ‘civil war,’ and NASA plans for nuclear propulsion

A chimpanzee ‘civil war,’ and NASA plans for nuclear propulsion

First up on the podcast, freelance science journalist Hannah Richter joins host Sarah Crespi to discuss NASA’s plans to send a nuclear-powered spacecraft to Mars in less than 3 years. Having not launc...

9 Apr 42min

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