Why did the dinosaurs disappear?

Dinosaurs appeared between the end of the Middle Triassic period and early Triassic, some 200 million years ago. There are several hypotheses about its extinction. According to one of them would have disappeared as a result of a large asteroid impact on Earth some 65 million years, which caused profound climate changes that could not adapt. Other scientists argue that you may not have been able to survive because of its immense size, which limited their ability to defend and fight for food. Nor is possible that the geological changes that built the great mountain ranges like the Alps, the Pyrenees and the Rockies ", with resulting climatic variations, have finished with them.

T. rex, one of the largest dinosaurs, measuring 17 meters long and 15 meters high. The size of the brontosaurus was equivalent to that of a passenger bus and a pterodactyl, to a jet fighter plane. But not all dinosaurs were big, many were small and bipedal.

What are you feeding these large animals?

Their eating habits of dinosaurs, the name is Greek for "terrible lizard," varied with the species: some were carnivores, other herbivores, and omnivores were dinosaurs. Among the carnivorous Tyrannosaurus account. Herbivorous dinosaurs were the brontosaurus and the stegosaurus.

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