User blog comment:BannedLagiacrus/Discussion of the Week: Invasive Species/@comment-5020152-20141101131154/@comment-25119729-20141101142218

That would only really lead to Seregios claiming terretories for their own, with the ecosystem intact and smaller monsters and animals mostly intact. Deviljhos are said to WIPE OUT entire ecosystems. Imagine them teaming up or simply a big raid of them swaping over the hunting areas.