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Aside from the wetapunga, other invertebrates throughout New Zealand also display remarkable gigantism. The giant stick insect, the giant centipede, and the carnivorous Powelliphanta snail, with its predatory behavior towards giant native earthworms, showcase the intricate food webs of New Zealand's forests. Here, island gigantism has provided these species advantages for survival, as they evolve in an environment with limited competition and predation from mammals.
The exploration of habitats offers vital insights into these creatures while examining the evolutionary advantages of size. However, these giants are not merely results of random mutation but rather a spectrum of adaptations that highlight an organism's ability to survive in isolation.