Did you guys know that especially arhtropleura can be kill easily using any range weapon? For example like bow, crossbow, coumpound bow and much more, promise it was range weapon. Arthropleura will take up to 125% damage if it was shoot by range weapon. Its poison slightly decrease your health but if you wearing a shield, your shield will take double damage as how the basic damage arthropleura do. Attacking it with melee weapon or hands will inflict 300% of the damage taken (if it was a player) while the tame creature only take 0.25% of its damage. So to kill arthropleura, use tamed creature or range weapon. Using melee weapon is the worst idea ever!