Is Jurassic Park possible?

Could you elaborate on the feasibility of creating a real-life Jurassic Park, as depicted in the iconic film franchise? Do we possess the technological advancements and scientific understanding to resurrect extinct species, such as dinosaurs, and safely house them in an enclosed environment? What ethical considerations would need to be addressed in such an endeavor? Additionally, what potential challenges or risks might arise in attempting to bring back creatures that have been extinct for millions of years?