It really depends on what dinosuar.
Dilophosaurus was a man-sized dino. They were actually about the size of a large dog. Although, the gigantic and famous Tyrannosaurus Rex and Brachiosaurus were huge mostlikely because it had to find food at different places. So, yes, genetics played a big role in the size of dinos and evolution of the needs. So the Brachiosaurus could reach leaves off of high trees. But, like I said before, not ALL dinosaurs were big.
Why dinosaurs were so big is because in prehistoric times there was no winter. and dinosaurs are lizards and lizards never stop growing. so mixed with humidity and surplus of food the dinosaurs or lizards lived for hundreds of years and grow all that time.
No, unless you consider birds dinosaurs (some people do; dinosaurs and birds form a clade).Science says dinosaurs (of the sort normally meant by "dinosaurs", i.e. not birds) became extinct tens of millions of years ago; humans have been around for maybe a couple of millions of years tops, and that's if you're exceptionally generous with your definition of "human".Some creationists think dinosaurs must have coexisted with humans, but there's one big problem with this: the Bible doesn't mention dinosaurs, or anything like dinosaurs, hanging around in Genesis anywhere. Some people play games with the wording of the second sentence of Genesis and put dinosaurs in the time between "God created the heavens and the earth" and "The earth became without form and void." In this case they were still gone before humans arrived on the scene.
When astroids hit the moon it causes pockmarks... also when the dinosaurs moved to the moon 222,000 years ago they made big poops.
The "Age of Dinosaurs" came to an end with the extinction event at the end of the Cretaceous.
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Why dinosaurs were so big is because in prehistoric times there was no winter. and dinosaurs are lizards and lizards never stop growing. so mixed with humidity and surplus of food the dinosaurs or lizards lived for hundreds of years and grow all that time.
Not all dinosaurs had large feet. Some dinosaurs were small and didn't have big feet.
very big
yes because dinosaurs are big
stegasaurs are dinosaurs with big spikes on their long tail. they are not as big as a tyrannosaurus but bigger than a valociraptor.
some predict the the dinosaurs died of a big asteroid.
yes dinosaurs are a kind of reptiles they are big lizards
The first dinosaurs evolved from fishes and were no bigger than these days crocodiles.
2 animals that are related to dinosaurs are sharks and croodiles.
No
Valley of the Dinosaurs - 1974 The Big Toothache was released on: USA: 14 December 1974
Birds are dinosaurs. The very big dinosaurs died before humans evolved.