I lost my lystrosaur and mos chop to 2 Cnidaria

These jellyfish sting and are dangerous. They killed my first dinosaurs

once.

Have a crossbow in your hotbar AT ALL TIMES. Sometimes jellyfish will happen, and you must be ready

I think the killer jelly is a mix between a box jelly, deep sea jelly and a Man’oWar. The Man’oWar is not a jelly but like it and it’s sting almost burns you, the box jelly also would contribute to the sting and the deep sea jelly will get the glow. Lik if u think so

Use a Basilosaurus to kill you don’t get kicked off

Do NOT go near this creature, or at least have a ranged weapon

Be very careful near them I was cruising around with my Dino’s in the sea( a level91 bronto a rex a sarcophagus and a wyvern )I got onto my sarco and went under to get silica pearls and I see my bronco died so I got to surface thinking megladons then out of nowhere I get shocked then terror

Wyvern dead rex dead sarco dead bronto dead me DED

In ark mobile and you are a beginner you can shoot it with a bow and a stone arrow

They have a long agro range so be careful near them. They are also found at the surface a lot. I suggest to try to get to shore, then you can try to kill it. Try to get away quickly since there deadly.

Extinguish at all cost, they have killed me at least twice and they are useless and annoying so exterminate this guys at minimum chance

Somehow, I found out that the Tue is impervious to the shock dismount of any creature, but it still takes the damage.

poke it with a spear and get it's very useful bio toxin.

I hate these guys they killed my friend and trike

Guys you gotta agree with me, These little blue jellyfish mfs are annoying

WARNING: while on my spino, I found some of these guys in shallow water. I decided to kill them for their bio toxin, and ran over with my powerful spino. It knocked me right off the saddle. Thank goodness it was shallow water. I swiftly killed these (I was level 96 with lots of melee upgraded). Also, they electrocute you while swimming, it makes you freeze in place, and then they kill you. Easiest way to kill: find some near shore. Swim out (only a little bit) wait for them to notice and start to come. Before they can reach you, swim back up to shore. They will be extremely close to shore, but make sure they’re close enough so you can still stand. Take a weapon (I used a pike) and stab them. Kill them, then harvest the, with your weapon, and enjoy the bio toxin. It’s literally all they drop.

If you ever encounter these guys lead them too the shore and just start spearing, shooting whatever you need too do to kill it. At least you get bio toxin from it which can be quite helpful.

If you see a Cnidaria here's what you need to do

1. Run for your entire life

2. Beg for mercy

3. Get out of the area as fast as you can before it's too late

Stuns your tames. I lost loads of creatures when I was a young player.

Whenever it touches most enemies they are in a literal stun lock taking damage so be careful when in combat.

In one of the south zone spawns you spawn right next to a river these will spawn in the river and the river is shallow and if u get a bow you can shoot the jelly’s from land while they can’t do anything and you can get lots of bio toxin while at it since dead bodies won’t do anything to you.

Kill the stupid idiot black hearted fool face arrogant stubtail jellyfish

1. Craft bow and arrows

2. Shoot it

3. Collect biotoxin

4. Use it to tame creatures