I'm gonna give a serious answer to this...
The leading theory about why the dinosaurs went extinct is that a large meteor hit the earth 65 million years ago. The dinosaurs were in no way all directly killed from the blast. When the meteor hit, it created a gigantic dust cloud that blocked out the sun for years. This in turn killed many of the plants, which the herbivorous dinosaurs fed on. They began to reduce in number, and they were the only food source for the carnivores. But, it is unlikely that this is the sole cause of the extinction. Flowering plants and grasses, which were just appearing at the time, began to replace the small shrubs and bushes that many medium sized herbivorous dinosaurs ate. There are countless other theories, from a global temperature drop to volcanoes adding to the soot in the atmosphere and extending the period without direct sunlight.
