discussions between theoreticians
blanket and eternal ice
Pleistocene, which continued without interruption to the modern
the scientific consensus
evidence that they are not so long ago on Earth occurred great changes.
Something polished it and scraped the surface of the rocks, and the world is
was strewn with debris. Across the planet were scattered
literally millions of so-called "wandering" stone
boulders. Have occurred in the most unusual places: the
are carefully placed on top of the mountains, burying the valley
or are lonely standing in the meadows. The question that is troubling
First and geologists was: What is moved and boulders?