You've heard of the woolly mammoth. But have you heard of woolly mice? These critters were genetically modified by the Dallas-based biotech company <a href="https://colossal.com/">Colossal Biosciences</a> to have the same "woolly" and fat appearance as the ancient mammoths. The mice are a key step in the longer journey to de-extinct the woolly mammoth. NPR's <a href="https://www.npr.org/people/146944972/rob-stein">Rob Stein</a> takes us to the lab where it all happened. Interested in more biotech stories? Let us know by dropping a line to <a href="mailto:shortwave@npr.org">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">plus.npr.org/shortwave</a>. 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>

Will Bark For Science

New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor. Join hosts Emily Kwong and Regina Barber for science on a different wavelength.If you're hooked, try Short Wave Plus. Your subscription supports the show and unlocks a sponsor-free feed. Learn more at plus.npr.org/shortwave