Transcription: Because of the theory of plate tectonics, there are those who believe that the Earth looks radically different today than it did in the past. If we look at the continents for example, it looks like they could all fit together in one big supercontinent which some people call Pangaea. Here's what Pangaea might have looked like. Now please understand this is all just speculation, but if we believe that the plates upon which the continents sit can move, then the continents can move too. Thus, long ago, continents might have looked like this and then when the plates moved the continents would move ...