Many people, especially scientists, would be extremely excited. They would see it as a once - in - a - lifetime opportunity to study these long - extinct creatures up close. They would start observing their behavior, diet, and how they interact with the modern environment. However, there would also be those who would immediately think about the danger and start advocating for ways to either control or get rid of the dinosaurs again.
Humans' reactions would be diverse. There would be thrill - seekers who would want to get as close as possible to the dinosaurs, thinking it's the coolest thing ever. Governments around the world would be in a panic, trying to figure out how to protect their citizens. Conservationists might try to find a way to co - exist with the dinosaurs, seeing them as a new addition to the Earth's biodiversity. But overall, there would be chaos in the beginning as people adjust to the presence of these huge, prehistoric animals in their world.