First day it was released, started a new character made a stone house boat and headed north. Was docked, taming a direwolf. Suddenly it drops from a cliff with 3 carnos. They surrounded my boat and wiped me in three minutes. If you see the buff, gtfo.
They spawn in the snow biome and always spawn with 3 Carnos as allies if your on a tame it can make the tame go out of control and you won't be able to control it affects almost all dinos when tamed you can Ally wild Carnos for a short period of time but the roar if used to much will put your Dino to sleep
Be ready to run into these guys a lot while in the snow biome. Keep your distance if you don't have a decent army built up yet. Lower levels can be downed by some well placed shotgun blasts, just be careful when you engage. If it scares your tames its possible they'll fall right off the icy cliffs into the sea where they'll be devoured by sharks. Its either focus your attention on the yuty and get shredded by the carnos or focus on its carno lackeys and risk all your tames being scared off.
If you're out on a bird and see one of these, don't do your usaul trick of flying up to it to investigate... your bird will lose its sh*t! By that a mean you will lose all control of it for x amount of time.