>>48881166I image them being such a tough nut to crack might have been natures attempt to conceal something quite tasty inside its hardened body, that fibrous mass of near-unpalatable flesh encased inside a deterringly tough hide thats additionally soaked with its poisonous sweat...
Feels like somekind of a 'forbidden fruit' that's nearly impossible to peel-apart without the proper tools - but if this fruit's pulp is quite disgusting and its zest is literally poisoned for your inconvinience, then what about their seeds? Perhaps they are the best part of this bone-crunchingly hard to take down ebony Jackfruit?
Ill never be as good at this as you are Galarian - please provide me with inspiration 
