In 2003, researchers tracking a nine foot great white shark off the coast of Bremer Bay, Australia made a chilling discovery when the shark’s tracking device washed ashore without the shark. The data revealed a sudden deep dive to 1,900 feet and a sharp temperature spike, suggesting the shark had been swallowed whole by an unknown predator. What followed became one of the ocean’s most unsettling mysteries: What could possibly hunt and devour one of the world’s most fearsome predators?

Fearful is a podcast produced by Media Forge Studios, and releases a new episode here every Wednesday.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.