We start today’s installment by discussing an audacious project to resurrect the wooly mammoth—or at least certain of its genes, which allowed it to thrive in frigid regions. From mammoths, George and I turn to the topic of synthetic meats, which could enter our kitchens and bellies much sooner than most people think. We close by discussing an ambitious longevity project currently underway in George’s lab. It’s not about life extension—but aging reversal.

Learn about your ad choices: dovetail.prx.org/ad-choices