Your shower pipes are alive. So are your sinks, books, and floorboards. New studies of our homes are revealing just what species live there – in the thousands, from bacteria to flies to millipedes. Meanwhile, life keeps surprising us by popping up in other unexpected places: the deep biosphere houses the majority of the world’s bacteria and the Arctic tundra has kept worms frozen, but alive, for 40,000 years. We embrace the multitude of life living on us, in us, and – as it turns out – in every possible ecological niche. Most of it is harmless, some is beneficial, and it’s all testament to the amazing diversity and adaptability of life. In addition, the hardiest organisms suggest where we might find life beyond Earth. Guests: Rob Dunn – Professor of applied ecology at North Carolina State University and at the Natural History Museum at the University of Copenhagen. Author of “Never Home Alone: From Microbes to Millipedes, Camel Crickets, and Honeybees, the Natural History of Where We Live.” Lynn Rothschild – Astrobiologist and synthetic biologist at the NASA Ames Research Center. Karen Lloyd – Environmental microbiologist and associate professor at the University of Tennessee. Originally aired January 21, 2019 Featuring music by Dewey Dellay and Jun Miyake A special offer to Big Picture Science listeners: Receive 60% off the first month of a MEL Physics, MEL Chemistry or MEL STEM subscription. Just go to MELscience.com and use the promo code BPS or follow this link: https://melscience.com/sBI3/. You like science, that’s why you listen to Big Picture Science. So why not check out MEL science for your kids? Big Picture Science is part of the Airwave Media podcast network. Please contact sales@advertisecast.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!   Learn more about your ad choices. Visit megaphone.fm/adchoices