This is a constant element when it comes to UFOs and paranormal sightings.The situation is more remarkable still, as there was a third species of hominid around 40,000 years ago: the Neanderthals. During WWII, unexplained aircraft failures were sometimes blamed on "gremlins", small destructive creatures that became legends among the military and later, commercial pilots and aircraft mechanics.There has been a lot of time, energy and money devoted to trying to prove the existence of UFOs.If Swisher and his team's dating results - reported last month in the journal Science - stand up, homo erectus managed to cling on almost 10 times longer
