Six continents separated by vast expanses of water - this is the familiar image of our planet that we have all shared since childhood.
But the Earth hasn't always looked like this. Over the past 4.6 billion years, our planet has gone through many geological eras.
During some of these eras, almost the entire surface was covered with ice, while in other periods, on the contrary, the polar caps melted completely.
In the distant past, the continents were not arranged as they are today. Land blocks moved relative to each other, which led to movement, collision of continents and the emergence of supercontinents that united almost all the landmasses.