Did Ben Franklin really think the turkey should replace the eagle as America’s national bird? Analyzing the microbiome of Leonardo DaVinci’s drawings. And scientists who have figured out a way to rewind cellular aging in humans.Sponsors:Fitbod, Get one month free at Fitbod.me/kottkeBitTrust IRA, Waive your signup fee BitTrustIRA.com/kottkeLinks:Should the Turkey Replace the Bald Eagle as the National Bird? Ben Franklin Thought So (Discover Magazine)From Benjamin Franklin to Sarah Bache, 26 January 1784 (National Archives)The microbiome of Da Vinci's drawings (Phys.Org)In a First, Scientists Say They've Partially Reversed a Cellular Aging Process in Humans (Science Alert)Kottke.OrgJackson Bird on TwitterSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.