Never go near it with your Dino, it will kill you, your Dino, your friends, your family, the guy down the street, some guy over in Africa, all while they won't do a thing to attack it.

If a cnidaria killed my spino, boy i would be mad. i lost my sarco to cnidarias, a scare with my icthy with cnidarias, and almost got my megalceros killed by some. ( he is dead now D:) I kill any of these that i can. The dossier says that they are passive, but aggresive when approched, NO! as soon as i step in the water these attack, and they litterally don't move at all, they just sit there and chill until you or a tame steps in the water. one like=one prayer for my deceased sarco, Gatorade (you can find his story in sarco) and one member of the cnidaria hate club.

Me and my friend: *enters the water to move our 3 gigas off of herbi island onto the mainland*

Evil Jellyfish Of Doom: "So You Have Chosen Death"

Real story 😭 1 👆 = 1 R.I.P for chaos , grim and nebula 😭😭😭

This is the kind of creature I'd happily hunt to extinction...

i threw a spear at a group of these guys, then my sarco went to kill them and I watched in horror as she flew through the air dead, now all I do is kill every last one of these guys

KILL THE JELLIES. AVENGE YOUR FALLEN DINOS.

Step 1: Tame a basilosaurus

Step 2: Equip a saddle on it

Step 3: MURDER EVERY JELLY YOU FIND AND AVENGE YOUR FALLEN TAMES!!! SHOW THEM WHAT IT’S LIKE TO DIE WITHOUT BEING ABLE TO FIGHT BACK!!!

If you are reading this it seems your underwater adventure came to a shocking conclusion.