Could Dinosaurs Really Roam the Earth Again?

Let's face it. Aside from the horrible deaths that take place in the Jurassic Park franchise and soon to be Jurassic World when it hits theaters on June 12 don't you think it would be a little bit cool to roam among the (friendly) dinosaurs? Obviously we found ourselves asking questions such as "Is this realistic?" and "Could it happen?" But because we're journalists and not scientists, we left it up to them to figure it out for us. It turns out a park filled with "de-extincted" dinosaurs isn't possible because scientists don't have any of their DNA left, but scientists are, in fact, debating bringing back more recently extinct species such as the passenger pigeon!