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Dinosaurs were wiped out by sudden drop in temperatures, not by comet striking the planet, scientists claimed.
British researchers claim that a sudden plummeting in the sea temperature of 16F (9C) more than 137 million years ago was the first step towards their eventual road to extinction.
the drop in temperature happened when the Earth was in a ''greenhouse'' climate, which was very similar to now.
There is a considerable amount of evidence that a bolide (a comet or asteroid) collision with Earth triggered the end of the dinosaur era 65 million years ago
Originally posted by grantbeed
Now they are saying that it was not 'Comet' strike that killed them, but actually a drop in Sea temperatures.