On this week’s show: A different approach to determining when stars formed, and color-changing lizard and toxin-resistant yeast point to “plastic” form of adaptation.
In a fast-changing environment, evolution can be slow—sometimes so slow that an organism dies out before the right mutation comes along. Host Sarah Crespi speaks with staff writer Elizabeth Pennisi about how plastic traits—traits that can alter in response to environmental conditions—could help life catch up.
Also on this week’s show, host Meagan Cantwell talks with Marco Ajello a professor of Physics and Astronomy at Clemson University in South Carolina about his team’s method to determine the universe’s star formation history. By looking at 739 blazars, supermassive black holes at the center of galaxies, Ajello and his team were able to model the history of stars since the big bang.
Finally, in this month’s book segment, Jen Golbeck interviews Christine Du Bois about her book Story of Soy. You can listen to more books segment and read more reviews on our books blog, Books et al.
This week’s episode was edited by Podigy.
Listen to previous podcasts
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About the Science Podcast
http://www.sciencemag.org/about/podcast
[Image: NASA/Goddard Space Flight Center Conceptual Image Lab; Music: Jeffrey Cook] ++
Authors: Sarah Crespi; Meagan Cantwell; Elizabeth Pennisi
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Podcast (audio only): The universe’s star formation history, and a powerful new helper for evolution |
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| Science & Technology | Upload TimePublished on 30 Nov 2018 |
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