Not efficient, but relable way to get biotoxin: run near them in water them swim to a coastline and wait. They will pursue. Then back up just enough in the water where they cant go forward, but you can hit them with a pike or spear. This even works with stuff like axes. I did this on my third day I ever played this game. Had no use for biotoxin though.

I just farm them with my basilosaurus Numpty

I have never lose any creatures to this blue glowing satan because I’m not dumb and dont make creatures swim in the blue stuff and also tame sea sausages because they are op

They have no use practically there to Annoy to death (literally) it says they're passive but aggressive when approached but that's a lie these things kill all things not wild in the water I had went to do something on my itchy them got off and while on a mountain it said my itchy god killed by one of these horrible animals so just get a bow and arrow and shoot them (while your out of water)

Actually you can force tame them but why why just why why why why why why just WHYYYYYYYYY if you hav force tamed them you are on the side of the most hated creature aside from troodons

Guys the best way to kill these guys is

Go in water and get out and they will comme to you

Get them near shore

After that go in water again and come out

These dumbos will follow u on land and die

(This worked for me on mobile)

The only use they have is bio toxin it's better than narcotics

I'm Tiger and press the trang arrow attacking the dimmorphodon if u like it and to help newbies

I HATE THEM,so I abuse them with my good ol' shotgun.Also I used them for some dodo Science.

Actually nvm keep this jelly boi the way he is

Update idea: make them evolve into the common and harmless moon jellyfish :3

Use a crossbow or harpoon launcher for these guys melee will kill you

I lost a space dolphin to jellyfish this says enough if you think you can just go by them in a hurry don’t just take the time to go a different way

They aren't that bad if you kill it with a crossbow or another ranged weapon. You can hit the body after it's dead with a melee weapon or tool and you wont get stunned.

Shoot it from the shore with a bow and arrow

A Basilo is pretty much the only way to deal with these since they are immune to the shock

Lost my Plesio on six of them so i tested with two high level Dunleos. Worked well just 10% health lost... The dinos are short time not stunned, so they can attack them. More dinos less care about them! Never swimm alone!They will get you :)

Okay, if these could be tamed you may probably need to use Ichthyornis to move them to another lake

They give biotocxin if you kill them

If you want bio toxin , lure them to the upper surface and drive over them with a raft, kill them and get that bio toxin

I nearly lost my 3000 attack lvl 500 shadow mane too these guys so always have a backup

I once saw some glowing stuff near seashore I said are these energy thingies but on I came closer it was Cnidaria and I tried killing them but they killed me and my dodo at least I got and dilophasaur now