I was flying my Phantom 3 Pro this morning and had the most unusual experience, I was returning to my launch point slowly at a height of approximately 20 feet and I noticed a dark object about 3/4" in size flying up toward the bottom of my phantom only to be blown back down toward the ground by the down draft from the propellers again and again. I moved sideways roughly 15 feet and the creature followed and resumed aggressively trying to reach my Phantom. Finally it flew over top of my phantom and flew down and into on of the propeller blades and with a loud crack it was chopped into fine pieces and briefly disrupted the stability of my Phantom causing it to drop 2 feet before stabilizing. When I landed the evidence of this encounter was splattered all over one side of my Phantom but there was no damage! It did make me wonder if some of the "mystery" crashes we hear about all too often could be caused by similar circumstances - a large beetle, which I think was the creature I aerially eviscerated, might be able to destroy a propeller causing a phantom to drop out of the sky. It was amazing how aggressively it was attacking my Phantom and I have to wonder what prompted such an aggressive posture - Blinking Lights? Engine Noise? Are there other alternative scenarios similar to this one that have nothing to do with pilot error or equipment malfunction?