1st preserved dinosaur butthole is 'perfect' and 'unique,' paleontologist says

Nature and Evolution are capable of producing awesomely remarkable life forms. One wonders, maybe speculates, what will be produced in our species when and if we venture into colonizing space. Or more to reality, what might be the characteristics and capabilities of/if a sapiens sub-species replaces us. as we did the Neanderthals.
 
Another "cool" finding about dinosaurs. Their A-hole was perfect. Amazing how biological evolution can go through imperfect butts with no fossil record to the accidental finding of perfect preservation. One has to wonder why their eggs, bones and coprolites were also perfect. Question? Why shouldn't evolutionary paleontologists statistically expect an imperfect butthole in the first one ever found preserved?