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Manitoba, Canada | The larger the animals, the more food they need to survive. The sudden and extreme change in climate would kill off a vast amount of vegetation. There would be small pockets and small plants that would survive but the large herbivore dinosaurs would need huge amounts of readily available plant material to survive. Those large amounts of nearby vegetation in any given spot simply would not exist. The herbivores that didn’t die immediately would slowly die off. The large meat eaters food source would die with them. Most scientists think that it might have taken several to many years for the large dinosaurs to actually be completely wiped out. It is highly unlikely that it was an instantaneous extinction.
Some smaller animals, including small dinosaurs, could have survived on small scattered patches of plants and other small animals. It would have been the amount of food required for an animal to live that would have been the deciding factor if the species survived or not. Logically, the size of the animal was a very large factor in the amount of food it required to survive. | |
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