"we've yet to find any evidence of projectile use amongst Neanderthals, especially bow and arrow" Interestingly, the same is true about their contemporary Homo

"we've yet to find any evidence of projectile use amongst Neanderthals, especially bow and arrow" Interestingly, the same is true about their contemporary Homo sapiens sapiens competitors. There is no evidence of use of bows and arrows in Europe until way after the Neanderthals died out.