In Jurassic Park, they introduced the concept of salvaging prehistoric DNA from fossils and amber. I learned that this is only partially true in real life. A group of scientists tried to extract DNA like the scientists in Jurassic Park, but they used a different method than in the movie. In the movie, scientists drilled through amber to gain access to the DNA. In real life, scientists sterilized the amber before coating it in liquid nitrogen, which cracked the amber open. They did get DNA, but it was insect instead of dinosaur and it was only extremely small amounts. Later on, scientists cracked open Tyrannosaurus bones to find intact blood vessels and bone cells inside. However, like the amber experiments, there was only an extremely small amount of DNA that could be salvaged, which was nowhere near enough for cloning like in Jurassic Park. Still, these experiments gave me some ideas for my dinosaur theme park story idea. Even though the DNA samples were small, they may still be of use. For example, while retro-engineering birds back into dinosaur-like creatures, you could theoretically splice the embryos with whatever dinosaur DNA that could be salvaged, which could make them even more dinosaur-like. They still will be nothing like the dinosaurs that existed in the past, but they will be the next best thing. With the insect DNA from the amber, you could splice it into modern insects to make hybrids between prehistoric insects and modern ones, which would make good attractions for an insect house like what you find in any zoo.