"Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should..." - Michael Crichton, Jurassic Park.
The recreation of dinosaurs comes with many controversies. Many people are against the idea of it due to the possibility that they could break out and kill people. Others believe that there is no point in recreating dinosaurs just to put them in a zoo.
Main article: Animal Rights Issues
Animal rights activists such as PETA and ALF are generally against the idea of genetic enginneering of animals and keeping them in captivity, and they would likely oppose the idea of recreating dinosaurs.
Main article: Religious Issues
Religious groups generally oppose the idea of resurrection and 'playing God'. They also believe that the evolutionary view of dinosaurs would disprove their spiritual beliefs. They would most likely be against the idea of (re)creating dinosaurs.
Main article: Environmental Issues
If dinosaurs were to be recreated, they would likely cause ecological devastation if they escaped into nearby ecosystems. They could possibly outcompete modern species, such as lions and antelope.