They didn't kill it on purpose. It was probably incredibly fragile outside its natural habitat. It looked on the verge of death even before they took it out. I just can't figure out if it's actually prehistoric or if it's just a mutant they mistook for something else.
@hollowice999 Luffy was not a part of the game because he got swallowed by that big ass snake. And Luffy NEVER lost to Eneru. Eneru never BEAT him, he just delayed his ass whooping. Crocodile beat him twice, yes. Aokiji froze him, yes. Magellan, yes. Akainu, yes. But not once did Eneru in any way...
Kipping = Blisters