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BECAUSE YOU TOUCH YOURSELF AT NIGHT! Dinosaurs roamed the Earth for about 160 million years.

Then about 65 million years ago they vanished. No-one really knows why.

Some scientist think that a huge meteor hit the Earth and started volcanic

eruptions - the dust and ash would have blotted out the Sun for years.

Or perhaps the Earth's climate grew much colder and the cold-blooded dinosaurs

could not stand the cold as well as the warmblooded mammals that had begun

to live on Earth.

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12y ago

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Q: Why are the dinosaurs gone?
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