Scientists think that a giant metorite hit the earth in the dinosaur era. Then, the smoke and dust spread around (all the countries here today were once one big country). It killed all the plants, so herbivores died because they couldn't eat. The carnivores ate the herbivores, but because the herbivores couldn't produce offspring since they were dead, no more herbivores means no more food for the carnivores, which then died of starvation, like the herbivores.
But that's only a theory. It's the most likely one, though. There are many others, but this is the one that's been supported most.
I hope that answered your question.
From 11-year-old Ella Jae Skett
There aren't any dinosaurs alive any more anywhere
Actually, there ARE dinosaurs now; birds of all kinds are now classified as dinosaurs. They are actually more numerous than mammals!
No modern bird is more closely related to dinosaurs than any other.
Dinosaurs are not alive any more duma$$
there isn't any because a big meteor came and wiped them out
Dinosaurs are not alive any more but there are relatives of them such as birds as distant cousin.
Not any more, but Allosaurus is the name we've given to a species of dinosaurs.
There were never any dinosaurs in minecraft.
It is believed that more than 4000 years ago in Kentucky, human beings killed any dinosaurs with spears.
yes most dinosaurs ate plants
Thre are still living dinosaurs the birds !no
Yes, dinosaurs did live in the water.