FalloutJack said:
{1} Any creature whose job is to...explode. Earthbound has these, but I think exploding enemies overall have got to be some of the weirdest ones out there. You're a thing, and you live out your life until one day something threatens you and...your one real defense against them is to explode? How does that work? Is that a "You can't fire me, I quit!" move?
This is actually a valid tactic if you prize the species/group/many above the individual. If a predator tries to eat an animal and it explodes, then odds are good the predators will learn to stop trying to eat them pretty quickly. The individual creatures may be dead, but the species as a whole will benefit from it in the long run, kind of like a more flashy version of the "Don't eat me, I'm poisonous" tactic.
It's not even an entirely fictional thing, several species of Ant and/or Termite actually
do explode to deter predators.