Paleobiologist Natalia Rybczynski discovered a 3.5 million-year-old bone chunk on a remote Arctic island in 2006. The bone belonged to a camel, an animal typically associated with deserts. The camel's evolutionary journey took it from North America to the globe, adapting to different environments from snow to deserts. The same adaptations that helped camels in deserts also helped them in snowy environments. The story was originally told by Latif Nasser, who even brought a camel on stage for a TED Talk. The episode was produced by a team including Lulu Miller, Ana González, and others, with fact-checking by Anna Pujol-Mazzini. The podcast Terrestrials was created by Lulu Miller with WNYC Studios, and this episode was supported by several foundations. Listeners can support Radiolab by becoming a member of The Lab, and can also follow the show on social media and share their thoughts via email. The podcast also has a newsletter that includes essays, recommendations, and details on how to engage with the show.