Years of research and planning and weeks of travel went into an African expedition to look for a mysterious herd of elephants in Angola, ghost elephants.

They live differently than other elephants, behave differently than

other elephants. They're also huge, even by elephant standards, and the quest to find them has

been documented with incredible immersive detail in a new National Geographic film. From K.E.A.

in Dallas, this is Think. I'm Courtney Collins in for Chris Boyd.

Explorer and Conservationist Steve Boyce leads the journey with heart, curiosity, and passion.

The documentary is called Ghost Elephants, and he joins us now to talk about it.

Steve, welcome to think.

Thanks so much, Courtney.

I'm really excited to talk about this amazing adventure that's documented in the

film, but first I hope you'll share a little bit about how this journey came about. Where did

this quest start? What's the motivation? I mean, I've spent the last 25 years in the Ocavango

Delta. Now, that is a large delta, as you can picture it, a lot of water and floodplains and papyrus and the largest

elephant population in the world down there in the middle of the Kalahari desert in Botswana.

So we're in Africa.

And, you know, for a decade, I always wondered where the water came from.

In 2014 and 15, we followed it to its source in Angola.

This hadn't been done by scientists. The eastern sources were undocumented. And that's

where we found signs for elephants on our first expedition in 2015. And that was documented in

our film into the Okavanger that came up in 2018.

So this documentary has a pretty incredible team of heavy hitters that made it.

Obviously starting with the writer, the director and the narrator. Tell me who is involved

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