One million ways to sex a chicken egg, and how plastic finds its way to Arctic ice

Science Magazine Podcast

Science Podcast

News, News Commentary, Science

4.3 • 842 Ratings

🗓️ 15 August 2019

⏱️ 25 minutes

🔗️ Recording | iTunes | RSS

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Summary

Researchers, regulators, and the chicken industry are all united in their search for a way to make eggs more ethical by stopping culling—the killing of male chicks born to laying hens. Contributing Correspondent Gretchen Vogel talks with host Sarah Crespi about the many approaches being tried to determine the sex of chicken embryos before they hatch, from robots with lasers, to MRIs, to artificial intelligence, to gene editing with CRISPR. Also this week, Sarah talks with Melanie Bergmann, a marine biologist at the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, Germany, about finding microplastic particles in snow all the way up at the Fram Strait, between Greenland and the Svalbarg archipelago in Norway. This week’s episode was edited by Podigy. Download a transcript (PDF) Ads on this week’s show: Science Sessions podcast; National Highway Traffic Safety Administration Listen to previous podcasts. About the Science Podcast [Image: fruchtzwerg’s world/Flickr; Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	Morgan State University, a Baltimore, Maryland Carnegie R2 doctoral research institution,
0:05.0	offers more than 100 academic programs and awards degrees at the Baccliorate, Masters, and Doctoral Levels,
0:12.0	is furthering their mission of growing the future leading the world.
0:16.0	Morgan continues to address the needs and challenges of the modern urban environment.
0:20.0	With a four-year quadrupling of research, more than a dozen new doctoral programs,
0:25.7	and eight new National Centers of Excellence, Morgan is positioned to achieve Carnegie R1 designation in the next five years.
0:33.7	To learn more about Morgan and their ascension to R1, visit morgan.edu slash research.
0:40.9	This episode is brought to you by Shopify.
0:43.3	Looking to start a side hustle or become your own boss.
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0:59.7	Shopify.com.com slash special offer or lowercase. That's Shopify.comaek slash special offer.
1:06.6	This episode is sponsored in part by PNAS's Science Sessions podcast.
1:12.4	Today, take five minutes and learn something new about the physical, social, and natural worlds from the frontiers of science.
1:20.1	Subscribe to Science sessions on iTunes, Spotify, Google Play, Stitcher, wherever you get your podcasts.
1:32.2	Music Google Play, Stitcher, wherever you get your podcast. Welcome to the Science Podcasts for August 16, 2019.
1:36.2	I'm Sarah Crespi.
1:37.8	In this week's show, we start with staff writer Gretchen Vogel.
1:40.9	She talks with me about all the technologies from MRI to CRISPR, being used to determine the sex of chicken eggs.
1:49.9	And I talk with Melanie Bergman about finding microplastics in snow all the way up in the Alps, even in Arctic ice flows.
2:00.5	Now we have staff writer Gretchen Vogel.
	...

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