the same reason as the other dinosaurs
they were rear so they died
Well, when the dinosaurs stole his top hat, he justified America by spearing the dinosaur, not realizing its the last one. He made dinosaurs become extinct which helped people not die. That is the reason he became president. the reason he was killed is because john Wilkes booth loved dinosaurs.
One reason is that there were a lot of fossils in many layers of rock and then suddenly, there are a lot fewer. Also, there don't appear to be many dinosaurs alive today. So, they went extinct. Do you really mean "how" did the dinosaurs go extinct?
If Triceratops were aggressive, then not anymore, because the dinosaurs are extinct. This was a herbivorous (only plant eating) mammal. It is unclear if these species battled other dinosaurs, most likely only did if attacked because it had no reason to attack, as meat was not on his menu.
Strong geological evidence suggests that dinosaurs were killed off by an asteroid impact 65 million years ago. The impact drastically altered their environment, and they were not able to cope, so they became extinct. However this isn't the only reason. Many groups of dinosaurs were already becoming extinct from other environmental changes, but this is considered the final event that finished them off.
The dinosaurs went extinct because a comet hit the earth, then it got cold, then it flooded.
The dinosaurs went extinct millions of years ago, but there is not a conclusive reason as to why. The most widely accepted theory is about climate change - the planet got too hot and the climate shifted too dramatically for the dinosaurs to adapt.
yes it is. people say the reason it became extinct is because they think people were coming, or a volcano exploded, and the climate.
Dinosoars became extincted from one reason. Global Warming. their bodies couldn't take it what so ever and they all died off. Some lived as in Alligators i like to say but other than that they died.
most probably change in the climatic condition was the main reason for their extinction!!
Well, its possible, but not very likely. Mammals were only able to evolve into the dominant life forms because of the extinction of the dinosaurs. If there had been no K-T event, then dinosaurs would likely have kept right on living. They may or may not have gone extinct in the relatively minor extinctions since then. As to your condition with humans and dinosaurs being separated, that's not a likely scenario. Dinosaurs were successfully living on every continent on the planet, so I can't really think of a reason for them to go extinct on just one continent. (Would have had to be Africa, since that's where humans evolved)