Radiolab Mystery Bay
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Jun 19, 2025 
Marine biologist Alison Kock, who stumbled upon stunning shark photographs that changed her career, teams up with reporter Rachael Cusick to explore the mysteries of Great White Sharks in False Bay. They unravel the eerie disappearance of these apex predators, delve into thrilling shark encounters at Seal Island, and reveal surprising stress levels in seals due to shark predation. The dynamic interactions between seals, sharks, and orcas challenge preconceived notions, showcasing the intricate communication and survival strategies of these misunderstood creatures.
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Alison Kock's Shark Discovery
- Alison Kock discovered flying great white sharks from photos found in a car trunk while working at a car wash in Cape Town.
- She was skeptical at first but then witnessed incredible leaps of sharks at Seal Island, inspiring her lifelong study.
Sharks Creating Fear
- Great white sharks create a 'landscape of fear' that restricts the behavior of seals at Seal Island.
- Seals show stress hormone levels quadruple those on shark-free islands, revealing predator fear impacts.
Orca Attacks on Sharks
- Alison Kock investigated mysterious clean wounds on seven-gill and great white sharks with missing livers.
- Drone footage revealed orcas ambushing sharks and surgically removing their nutrient-rich livers before leaving.