If you have Rh positive blood like 85% of the world's population, that means you have a monkey gene that can be traced to the Rhesus monkey. Ancient civilizations documented the arrival of "gods" from the sky who created humans in their own image. Since humans have 98 percent of the same DNA as chimps, did ancient astronauts donate the other 2 percent? The world's oldest known civilization, the Sumerians, wrote that the "gods" came from the "planet of the crossing". The only planet that visibly crosses between Earth and the sun is Venus. Scientists now believe that Venus was once a lush, fertile planet that may have supported advanced life forms until a cataclysm caused a runaway greenhouse effect. What happened?