Right now, one million animal and plant species are threatened with extinction. Conservation scientists are doing whatever they can to save them, or at least of piece of them. For the last 45 years, a team of researchers at the San Diego Zoo has been freezing the cells of endangered animals. With these time capsules of DNA, researchers continue to study enda ... Show More
Jul 2023
Trapped in the icy waters of the Northwest Passage
For centuries, the Northwest Passage, the long-sought sea route connecting the Atlantic and Pacific Oceans through northern Canada, was a holy grail of Arctic exploration. Even now, sailing through it isn’t guaranteed. Mark Synnott, a National Geographic Explorer, writer, and adv ... Show More
34m 16s
Jul 2023
Playback: Modern Lives, Ancient Caves
There’s a lost continent waiting to be explored, and it’s right below our feet. We’ll dig into the deep human relationship to the underground—and why we understand it from an instinctive point of view, but not so much from a physical one. (Hint: We’re afraid of the dark.) In an e ... Show More
28m 39s
Jun 2023
Playback: This Indigenous Practice Fights Fire with Fire
For decades, the U.S. government evangelized fire suppression, most famously through Smokey Bear’s wildfire prevention campaign. But as climate change continues to exacerbate wildfire seasons and a growing body of scientific research supports using fire to fight fire, Indigenous ... Show More
29m 8s
May 2025
Curating the Coldest “Zoo” on Earth
In this episode, hosts Rick and Marco are headed back to the Frozen Zoo® to speak with its curator, Marlys Houck. This first-of-its-kind biobank began with a cell, and over the past 50 years it has grown to be the most extensive collection of its kind in the world, preserving liv ... Show More
47m 52s
Dec 2024
The Frozen Zoo®: A History of Putting Extinction on Ice
Despite its name, the Frozen Zoo does not require a scarf and mittens! This week, hosts Rick and Marco speak with Dr. Oliver Ryder, director of conservation genetics at San Diego Zoo Wildlife Alliance. The Frozen Zoo stores cryogenically frozen genetic materials from mammals, bir ... Show More
37m 8s
Dec 2024
The New Conservationists: Where Do Zoos Fit into the Conservation Puzzle? (Part 1)
Ashleigh Papp, an animal scientist turned storyteller, takes us on a trip to the zoo. People are divided on zoos, but as Papp explains, the thoughtful work that goes into caring for animals makes modern zoos conservation powerhouses. This is part one of The New Conservationists, ... Show More
18m 26s
Dec 2024
The New Conservationists: Thanks to Conservation Efforts, Pandas, Wolves and Panthers Are Making a Comeback (Part 4)
Tens of thousands of animal species are facing extinction, mostly because of human activity. But thanks to conservationists, there are some animals that are making a comeback.
This is part four of “The New Conservationists,” a four-part series about the evolving world of animal c ... Show More
23m 25s
Dec 2024
The New Conservationists: Thanks to Conservation Efforts, Pandas, Wolves and Panthers Are Making a Comeback (Part 4)
Tens of thousands of animal species are facing extinction, mostly because of human activity. But thanks to conservationists, there are some animals that are making a comeback.
This is part four of “The New Conservationists,” a four-part series about the evolving world of animal c ... Show More
23m 25s