The height of dinosaurs is difficult to measure. The height is dependant on the type of the dinosaur in question and it's posture (the way it is standing at a particular moment).
we and all large mammals would not be around
no such thing. there have been large birds know as terror birds that would have been able to hunt and kill small dinosaurs but they didnt live at the same time as dinosaurs and if your talking about larger dinosaurs such as sauropod and hadrosaurs then no
Some dinosaurs, such as Allosaurus, were large meat eaters. Apatosaurus was large, so it had a lot of meat, and bringing down an animal that large would be a feast for carnivorous dinosaurs. Young Allosaurus, on the other hand, weren't huge but they were relatively vulnerable and thus made easy meals for carnivorous dinosaurs.
Ceratosaurus was a large meat eater, so it ate large herbivorous dinosaurs. They may have hunted dinosaurs such as Dryosaurus, Camptosaurus, Drinker, Othneila, and even Stegosaurus. They would have scavenged on dead sauropods, as well.
The most powerful reptiles used to be the dinosaurs, although now they would probably be things like crocodiles, alligators, and large snakes.
The most likely scenario is that dinosaurs were actually warm blooded. Large dinosaurs could have survived because their bulk would help to conserve heat, and smaller dinosaurs in the Arctic probably had feathers.
The smallest carnivorous dinosaurs, such as Compsagnathus, are insects and small vertebrates. Large carnivorous dinosaurs usually ate large and small herbivorous dinosaurs. Some, however, ate fish, including Spinosaurus and Baryonyx.
The dinosaurs were killed by a very, very large rock called a woodwind.
tyrannosaurus Rex
Although there might be legends of large animals that roamed the earth Mother, it is highly unlikely that they knew about the dinosaurs. Since most natives did not disturb the earth because they would not want to hurt what was understood to be the Mother of life, they would not have discovered buried remains. Only if nature unearthed any skeletal remains would they have known about the dinosaurs. They, of course would not have called them dinosaurs.
human? Carnivorous dinosaurs such as Tyrannosaurus rex had no natural predators, but large herbivores such as Diplodocus would have been preyed upon by predators of the time. Some herbivores were naturally too large to have been eaten once they reached their full size. Some dinosaurs will have been cannibals and will have therefore have eaten each other and perhaps even their young. It is highly likely that some carnivores were opportunists, which meant that once another dinosaur was dead, they would prey on it.
The closes living relatives to all dinosaurs large and small are birds.