My tribe lives right outside the swamp biome and these damned things are a Menace. They've killed my members dozens of times and they surrounded our mounts and killed them. Do not take them lightly they are cold blooded killers and are efficient at it.
Whoever said “we hate to inform you, they don’t come in purple,” is so wrong. And they are NOT killers if you do this:
Stand on a high rock. They cannot climb. Shoot with Trang arrows. They are my favorite Dino on this game. They speak too.
My personal favorite Dino in the game. But when wild they are like "HOLY CRAP THEY ARE SO OVERPOWERED AND STRONG OMG I NEED ONE IT CAN PROBABLY KILL A GIGA" Once tamed it's like "This this can barely kill a raptor". Their only use is for fun and pulling players off their mount.
DO NOT PICKUP WITH ARGENTAVIS. I did this and while I was flying it over to my taming pen, it somehow knocked me off. It was attacking me all the way to the ground. Luckily wasn’t very high level so I was able to kill it before it killed me.