"Extinction doesn't have to be forever..."

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Could a Tyrannosaurus rex, saber-toothed cat and woolly mammoth survive alongside their present-day relatives? Zoologist and wildlife expert Nigel Marven travels back in time to capture the most amazing creatures ever to exist and keep them in the most incredible zoo never to exist, Prehistoric Park.

Over 90 percent of all the animals ever to roam the earth are now extinct. But what does this mean for us today? In each episode, Nigel ventures into the hostile climate of the Cretaceous, Pleistocene, Paleozoic and other time periods to understand what killed these creatures and then brings them back to his contemporary sanctuary.

After conquering the perils of the past, Nigel and his team must work to make sure these prehistoric wonders are comfortable, safe and thriving in their new enclosures. From teaching "Martha the Mammoth" to socialize with a herd of elephants to saving the park's animals from a pair of tyrannosaurs that gets loose, Nigel and his team must make sure these species can adapt. Do these prehistoric wonders survive long enough in order to breed? Do they get their second chance at life?

Although the park itself isn't real, the science behind the show is very real. Using the most recent data, Prehistoric Park immerses viewers in various prehistoric environments with Nigel serving as a guide. This six-part series from Animal Planet pairs scientific expertise with the same kind of incredible CGI featured in Discovery Channel's Walking with Dinosaurs to create a wondrous world where ancient wildlife collides with the present day.