User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-6050823-20141029004407/@comment-4009941-20141030233731

Since MH4U claims the ecosystem is changing that pretty much makes the info about Brute Wyverns not being native to the Old World outdated info now. Double since Abio even if a invasive species technically only came to exist when it got to the old world and Jho may have swam over. Life continues but the world is ever changing I guess. (I still don't think the invasive Baruragaru fits in the Old World ecosystem that good though.) I bet Seregios has set up a permanent home in the Old Desert. Great Jaggi likely came along with Jho since all of 3rd gen said on the Jaggi fangs "A fang similar in value to the foreign Velociprey's. Used to make bowgun ammo" Makes me think Jaggi also used to not be there. Jaggi gets to hang out with his old cousins. As for Delex and Rheno I have no idea.