The Chief Scientist and head of the DNA test laboratory made a startling discovery.
He was trawling through the animal test records when it occurred to him that the common house fly had never had its DNA catalogued. A few days later, having completed the tests, he was studying the results. He was confused by what he saw, so he carried out a second series in case they had not been done properly. The results came back the same. At a stretch, he considered what he was looking at was DNA, but its configuration was so strange that it was more like something he had read about. It was an article about tests that had been carried out on organic matter that had been found on the surface of an asteroid. He began to form the opinion that the common house fly may well have an unknown origin never before discovered.
He also went on to speculate that if these creatures were in fact alien, there purpose here on our planet could easily be to play the role of observer. It was hard to imagine a better way to maintain an ongoing programme of watching and evaluating a foreign species. If this was the case, it would be a simple yet exceptionally clever method of keeping track of the progress that mankind was making with respect to the planet and its wellbeing. Unhappily, it was during this moment of realisation that three flies unexpectedly landed on his desk. Slowly, they each turned to face him. It was at that moment he suffered a massive heart attack and dropped dead on the spot.
It was some years later that quite unexpectedly the Chief Scientist and head of the DNA test laboratory made a startling discovery…