apparently in the hxh series....CA thing was listed as a B rank threat...and the Phantom troupe was an A lvl bounty...makes u wonder what the upper ones are and how OP the those at the top are.
Lol, survival instinct is not unique to humanity it does not them the apex predator, it the intelligence that does it. And i think animals have more develop instinct than human.
Baneofthedragon