Josh & Chuck

Scientists believe that 99% of the estimated 50 billion species that have ever lived on Earth have disappeared through extinction. This is a natural process typically, but it can also be cataclysmic and it's becoming clear we are amid a massive one. Find out more with Josh and Chuck in this classic episode.See omnystudio.com/listener for privacy information.

Scientists believe that 99% of Earth's 50 billion species have gone extinct, with current extinction rates signaling a massive event. Listen to Josh and Chuck for more.

Selects: How Extinction Works