Less than 4,000 tigers live in the wild, but experts say there may be more than 10,000 captive in the U.S., where ownership of big cats is largely unregulated. Overheard’s Peter Gwin talks with National Geographic Channel's Mariana van Zeller about her investigation into tiger trafficking and how wildlife tourism encourages a cycle of breeding and mistreatment.
For more information on this episode, visit nationalgeographic.com/overheard
Want more?
For Mariana van Zeller’s reporting on tiger tourism and trafficking around the world, tune into National Geographic’s series Trafficked. 
Learn about what the Netflix series Tiger King left out about captive tigers and how visitors of roadside zoos can pose health risks to big cats. And check out how some of the series’ characters, like Doc Antle and Jeff Lowe, have been penalized for their treatment of wild animals. 
Also explore:
Listen to our previous episode about the hidden costs of wildlife tourism. 
And for paid subscribers:
Read “Captive tigers in the U.S. outnumber those in the wild. It’s a problem,” the National Geographic magazine story that looked into why there are thousands of big cats in the U.S.
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