As I was observing the fossil remains of a stegosaurus similar to the one shown posted above, a man came up shaking his head and wondering out loud, "can you imagine hunting one of those with only a spear."
I did not reply
There is also a lot of sculptures and paintings from ancient times and all throughout history that show what looks to be alien figures, UFOs, and space ships. Do you suggest that is proof that aliens exist and have been visting us for 5,000 years?
As I was observing the fossil remains of a stegosaurus similar to the one shown posted above, a man came up shaking his head and wondering out loud, "can you imagine hunting one of those with only a spear."
I did not reply
I would suggest they were visiting the Earth about 450,000 years ago.