Show Notes
When Professor Chris van Tulleken was invited to London Zoo early in his career to help diagnose a poorly gorilla named Kesho, he expected to analyse a sample in a lab. What followed was a case he would never forget.
In this episode of Wildest Moments, host Ben Fogle speaks with the doctor, scientist and broadcaster about the moment he came face-to-face with the western lowland gorilla - and the joint investigation that uncovered a rare chromosomal condition.
Joining the conversation is ZSL Animal Manager Dan Simmonds, who cared for Kesho at the time as a zookeeper. Together, they explore the importance of collaboration across medical disciplines - from veterinary science to human medicine - in understanding and protecting the health of all species.
It's a powerful story about curiosity, connection, and how the health of people, animals and ecosystems is deeply intertwined.
About Wildest Moments:Hosted by Ben Fogle and created in partnership with Mountain Warehouse, Wildest Moments is a podcast from ZSL (Zoological Society of London) exploring the surprising, emotional and transformative encounters people have had with wildlife. New episodes are released on the third Thursday of every month. Launched as part of ZSL's 200th anniversary, the series celebrates over two centuries of inspiring closer connections between people and the natural world.
Executive Producers - Rami Tzabar, Jane Gerber and Katie Derham
Senior Producer - Naomi Oiku
Production Supervisor - Mia Xerri Mondragon
ZSL editorial leads: Tina Campanella and Rebecca Blanchard
Sound Design and Additional Editing - Nada Smiljanić
Sound Engineer - Jon Last
Video Editor - Carla Mercer
Cover Art - Will Rose
More from ZSL's Wildest Moments
For Wuikinuxv First Nation councillor and environmental researcher Jennifer Walkus, living alongside grizzly bears is a way of life shaped by respect, knowledge and coexistence.
For Sunday Times bestselling author Chloe Dalton, a chance encounter with a tiny, orphaned leveret on a quiet country lane became a life-changing experience - one that would reshape how she saw the natural world.
For wildlife filmmaker Nigel Marven, seeing an Arabian oryx in the wild was a moment he never thought he'd experience - a species he had only ever seen in books as a child, once declared extinct in the wild.
For actress and Disney's The Lion King alumni Merryl Ansah, stepping into the role of Nala meant embodying one of the most iconic screen lions in history, but she'd never seen one in real life – until the night she spent at London Zoo.
Under starlit skies and glowing bioluminescence, Megan McCubbin found herself face to face with one of the ocean's most misunderstood predators - sharks.