Listen again to Elise's interview with Nigel on BBC Somerset Sound:
Nigel has been thrown off a speeding ostrich, eyeballed by a great white shark and put his head in the open jaws of an alligator in his quest to get up close to some of the world's most anti-social animals.
But, in Prehistoric Park, he travels back in time to rescue creatures on the edge of extinction and bring them back to a modern-day wildlife sanctuary.
Nigel, who studied botany and zoology at the University of Bristol, also acted as natural history consultant for the series.
He says it was great fun: "One, as a zoologist, it would be fantastic really to be able to travel back in time.
"Two, to make the shows, you have to go to amazing locations."
Filming for the series took a year and involved travelling to Chile, Canada, Florida, Brazil, South Africa, New Zealand and Australia to recreate landscapes from the past.
He travels for 300 days a year, but Somerset is home: "I love having a ploughman's when I'm back.
"The Somerset Levels are a wonderful place for birdwatching.
"I still love our part of the world."
You can see the series, which is also showing around the world, on ITV1 on Saturday evenings during July and August 2006.