Their attacks shock you (which makes you unable to move), and they often stick in groups. If you get surrounded by these, you're basically dead. Don't use melee weapons, use a crossbow.

They drop bio toxins, which can be used for a new tranq dart that's more powerful AND shocks the target.

You cannot tame a jelly fish but you can kill it and use it's wonderful biotoxins as narcotics to tame other huge animals

Make these tameable so I can light up my pond 🐙

Once grabbed they won't let go till dead I had a Lvl 215 spino and was having a jolly swim then BANG WAM I get jumped by 8 jelly bastards and the spino died :(

Get in the water and give it anime body pillow then you can go in the water any time without a problem

Early game it’s easy to kite them onshore and harvest the bodies for biotoxin, which makes taming other creatures much easier

Basilosaurus is the by far the best way to kill these things. Doesn't get shocked. High level ones harvest hundreds of biotoxin in minutes with no threat.

All fish can't kill you in shallow water!
Just make them come in shallow water and kill them with bare hands!
Believe me!
These f#cking creatures can't shock you in shallow water
Make sure they are very near to the beach and kill them!