Can otters be city dwellers? Are aliens real? Do we have to experience misery to understand happiness? On this episode, we investigate how strange bedfellows can lead to radical realizations. Guests include evolutionary biologist Philip Johns, astrophysicist Avi Loeb and author Laurel Braitman.

TED Radio Hour+ subscribers now get access to bonus episodes, with more ideas from TED speakers and a behind the scenes look with our producers. A Plus subscription also lets you listen to regular episodes (like this one!) without sponsors. Sign-up at: plus.npr.org/ted

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy