The scientists has successfully brought back dinosaurs, at first. It was all hell, carnivores and herbivores everywhere. People being eaten by carnivores or scared off by herbivores, T-Rex’s where the worlds ‘lions’ m, Raptors where the ‘wolves’ due to their wolf like packs and behaviors, Compies where the rats of the dinosaur world and etc. But after many generations and decades humans and dinosaurs started to live in a mostly natural hierarchy on earth again, carnivores are transported to remote areas with herbivores in biomes they can survive in, if a person spots a carnivorous near civilization.

They should call ‘Carnivore Removal Emergency Services (CRES)’ and get the carnivore removed safely back to where it belongs. There’s also ‘Herbivore Removal Emergency Services’ (HRES) which is the same thing but just for herbivores that are agitated or hostile and need to remove for the safety of humans and the dinosaur itself. Most herbivores are allowed to roam near civilization but can’t be roaming cities, and if someone gets the right paperwork then you can have a pet herbivore.

Of course there’s illegal breeding, trafficking of dinosaurs, and etc as this is humanity being talked here. Police in popular places use large herbivores like stegos and ankylosaurus as a sort of K-9 thing and they even train Compies to be sort of like sniffling dogs since they’re more agile then dogs and quicker, they also have enhanced senses. The military uses herbivores, carnivores, and flying dinosaurs.

Other then that the world has rehoused the ages of dinosaurs, even extinct plants and things started to regrow from the dinosaurs droppings in a way scientist can’t exactly explain how, and people can buy the plants to feed their herbivores, there’s even dinosaur veterinarians, and there’s a few dinosaur sports. Air Racing with flying type dinosaurs exist, rat hunting events with trained Compies exist and other dinosaur sports. Of course modern world animals exist as well still, dinosaurs are just added to the food chain.