A new study shows penguins are <a href="https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2656.70201"target="_blank" >breeding earlier than ever</a> in the Antarctic Peninsula. This region is one of the fastest-warming areas of the world due to climate change, and penguins time their breeding period to environmental conditions. That’s everything from the temperature outside and whether there’s ice on the ground to what food is available. Changes in those conditions could contribute to mating changes. Plus, answers to a debate about how ice melts and how dirty diapers train parents in the art of disgust.  Have a scientific question you want us to answer? Email us at <a href="mailto:shortwave@npr.org"target="_blank" >shortwave@npr.org</a>. Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at <a href="http://plus.npr.org/shortwave"target="_blank" >plus.npr.org/shortwave</a>. Listen to Short Wave on <a href="https://n.pr/3HOQKeK"target="_blank" >Spotify</a> and <a href="https://n.pr/3WA9vqh"target="_blank" >Apple Podcasts</a>.  This episode was produced by Jason Fuller and Rachel Carlson. It was edited by Rebecca Ramirez and Christopher Intagliata. Tyler Jones checked the facts. The audio engineers were Kwesi Lee and Hannah Gluvna. Learn more about sponsor message choices: <a href="https://podcastchoices.com/adchoices">podcastchoices.com/adchoices</a> <a href="https://www.npr.org/about-npr/179878450/privacy-policy">NPR Privacy Policy</a>

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The plight of penguins in Antarctica

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