Was on Ragnarok when I came across a swarm of Legendary Beelzebufo(frogs). https://i.imgur.com/HJLFQ65.png

Now.. the picture doesn't do it justice of what I saw. That's just from one small section. There were 9,000 of them that spawned in this area. I know that because of ACM. I had to kill all the wild dinos because they were lagging everyone in the area.