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Welcome to Prehistoric Answers. What would you like to know?

Example answer: Many theories have been proposed on why dinosaurs went extinct. Currently, the most accepted theory is that a large asteroid struck the Earth around 65.5 million years ago. This would have thrown up huge amounts of dust and debris into the sky, blocking out the sun. Without sunlight, plants would die. Without plants, the herbivorous dinosaurs would starve, and therefore the carnivores soon after. The asteroid would have also affected most larger animals in the sea and sky.

Other proposed theories include disease, severe climate change, or a combination of these factors.

Of course, not all the dinosaurs went extinct. Birds still live today, and as they are evolved dinosaurs, they seem to have become even more successful than in ancient times! Styracosaurus Rider (Speak to the Rider, your Lord and Master) {Look upon my servants} 03:27, November 13, 2011 (UTC)