If the recently released Jurassic World: Fallen Kingdom has you yearning to see the ancient creatures in real life, you are out of luck. That’s because to resurrect the animals, researchers would need a complete set of dinosaur DNA, which is impossible to obtain. However, if Nikita and Sergey Zimov have their way, a prehistoric Ice Age ecosystem may soon become a reality. Their motive is not to attract tourists but to stop the thawing of the Arctic permafrost.