Winner of the iHeartRadio Podcast Award for Best Curiosity - If you've ever wanted to know about champagne, satanism, the Stonewall Uprising, chaos theory, LSD, El Nino, true crime and Rosa Parks then look no further. Josh and Chuck have you covered.

What is parallel evolution?

May 19, 201130 min
In the process of parallel evolution, two seemingly unrelated species living in isolation can evolve surprisingly similar traits -- but how does it work, and why does it happen? Join Chuck and Josh as they break down the process of parallel evolution.Learn more about advertising on the HowStuffWorks podcasts at to learn about your ad choices when listening to podcasts, visit