
Well, both the size and ferocity of wildlife across Eorzea increased significantly as Dalamud grew closer to Eorzea. That's been confirmed. We can't know for certain whether his release sent them into a greater frenzy, however I'm sure the destruction of their habitats and the fact that most likely had to compete within their species (and with others) for food initially may have prompted them to be even more aggressive than usual for a time.
That, and many new species seem to have popped out of the woodworks since the calamity.
That, and many new species seem to have popped out of the woodworks since the calamity.