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There are many theories but paleontologists have not discovered the true reason why dinosaurs are extinct. The most famous theory is that a huge asteroid from space crashed into the earth causing climate changes and such. Another well known theory is that many large volcanoes erupted at the same time causing the ash to block the sun. There are many theories but no one knows which one is true.

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14y ago
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15y ago

part of the reason was a huge meteor, and the rest were killed by climate change

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Q: Why are dinosors extinct?
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