The current level of science and technology is really not enough. If we want to resurrect dinosaurs, it is theoretically necessary to extract dinosaur genes from fossils, and then inject some genes into the fertilized eggs of specific organisms by biological means, such as the fertilized eggs of some reptiles. Then cultivate a creature, and then continue to add some genes to the fertilized egg of this creature until it gradually approaches the dinosaur as we know it. Again: the current level of science and technology is really not enough. Maybe decades and hundreds of years later, when the technology reaches that level, dinosaurs can really be resurrected, but by that time, I'm afraid all kinds of strange creatures have emerged one after another.