"If it looks like a duck, swims like a duck and quacks like a duck, then it probably is a duck" - we all heard about this so-called "duck batter". He assumes that a person can identify an unknown object by observing its typical characteristics. If in the ancient image we see a bucket wheel excavator, then this is it.
If we take this "duck test" into account, then our planet Earth is nothing more than one huge giant quarry. A quarry in which coal, copper, uranium, nickel, gold and other natural resources were mined a long time ago (or not very long ago). The striking resemblance might make a non-biased person at least look into the matter.
Below are photographs of several quarries. This is the result of mining by our civilization in different parts of the world.