And then, after the primates discover the Monolith, they invent weaponry. This eventually leads to big black anal vibrators.
Of course, the use of an anal vibrator is more of a personal discovery, as in this video. Like all discoveries, it should be well-lubed, gingerly placed, and accompanied with slow but steady boning. Some day the humans will uncover an even more delicious orifice to put things in. For now, the Monolith waits...
· morning fun (xtube.com)