Aliens UFO ET
Now here's a thought. Humans have inhabited planet earth for 10s of thousands of years and have evolved in that time to what we are today. What if, and it's a huge what if....what if there was another civilization, or maybe even a few different civilizations living on this planet from millions of years ago and were quite happy flying around in their flying saucers making huge megalithic structures all over the world, until one day we show up with our large brains and take over the world. It could have been that the aliens as we call them today are actually earth's original inhabitants and we, the humans are just a recent addition. What do you think?