 And from the Doris Duke Foundation. From NPR News, this is All Things Considered. I'm Juana Summers. And I'm Scott Detrow. It is time now for our regular science news roundup with our friends at NPR's Shortwave podcast, Regina Barber and Emily Kwong. Hello to both of you. Hello, Scott. So here's how this works. You have brought us three science stories that caught your attention this week. What are they?