Sharks Evolved to Save the World

This episode is all about the wonders of shark evolution -- in fiction and real life. We have a heated debate about whether shark movies are science fiction or just monster movies. Then we talk to biologist and shark expert David Shiffman about how sharks are a vital part of our ecosystems.

This episode is all about the wonders of shark evolution -- in fiction and real life. We have a heated debate about whether shark movies are science fiction or just monster movies. Then we talk to biologist and shark expert David Shiffman about how sharks are a vital part of our ecosystems. Plus, we share your stories about the weirdest shark encounters ever.