To keep its line going, every creature needs a niche, a part of the environment that allows it to obtain food, protect it from becoming food, and successfully raise its young (this may or may not involve it actually parenting them). Some animals are good are finding niches, such as people -- and cockroaches. They can live anywhere (or almost), eat all sorts of stuff and have good strategies for producing offspring. Others have precarious niches, like the great panda and the koala. They have special food sources and if anything happens to those, they're in big trouble. Dinosaurs had a whole planet, but its ecosystem was very interwoven; when part of it was severely damaged, other parts began to fail, rather like mountain climbers tied together and all falling when one of them does. Whatever happened (most folks think a collision with an asteroid or comet), it damaged so much most dinosaurs couldn't recover from it. Apart from birds.
Yes because when we are not exist yet dinosaurs rule the earth but today there are no dinosaurs here.
No, dinosaurs are neither a hypothesis nor is there a "hypothesis of Earth".
The duration of When Dinosaurs Ruled the Earth is 1.6 hours.
Dinosaurs first appeared in the tertiary stages of the Earth. Tertiary was when the dinosaurs ruled the earth. Then there was jurassic and then creteacious
Birds looked like cockroaches when dinosaurs ruled the earth.
Most likely, no. The Earth's core is far to hot for a community of dinosaurs to thrive.
After the dinosaurs died out came the era of mammals.
the dinosaurs of course
dinosaurs
no
Yes They have been on earth for 450,000,000 years, that's longer than dinosaurs
Dinosaurs lived and died out about 65 million years before humans walked the Earth.