For people who don’t know how to tame these all you have to do is:

1.tame an arthropleura

2. Prepare the taming food (anything it likes to eat).

3. Take your arthropluera into a cave where bats spawn

4. Go near a bat and feed it

5.keep feeding until it is tamed

6. Boom now you have an annoying life-ruining shithead that makes me cry everytime it eats me.

Can’t tame till level 65. Super bummed 🙁 in mobile

Lots of them at the jungle castle in ragnarok, but most of them are too high level to tame; I found a level around 450 there

A wonderful"guard dog" even for late game players. A few of these inside your house and anyone who tries to raid you will show up dead in your tribe manager quite a bit. These little suckers are about as overpowered in close quarters combat as it comes.

Use cactus broth and bug spray so they can’t see you! Put preserving salt in your inventory to make meat last longer (helps but not needed)

I found that I needed to crawl in full ghillie for it not to aggro on me. Also, bring more meat, the amount is off on this tame. A 145 on 2x takes 20, I brought 30 and came up short of 10% taming.

the upper south cave, the north east cave, the caverns of lost hope, the caverns of lost faith and the tek cave are not on mobile, and they don't spawn at the swamp cave or snow cave. i found them in the north west cave, and besides the terrifying cliffs, it was pretty ok. just take some bug repellent and warm armor. and they just sit in certain spots in clusters. the only other creatures in there are araneos, so with a few bug repellents, it's actually pretty easy, but without them the clusters of bats and spiders can be dangerous. you can avoid the cliffs if you don't care about the artifact, but unfortunately if you do want that, you'll have to brave at least one cliff. the cave entrance is so small that i couldn't get my onyc out, so i had to request it.

For some reason, knocking these guys out is not possible. I don’t know if it’s a glitch or by design, but just remember that these are a passive team

They can't be tamed on genesis for now some how when you try to feed him nothing happen

Watch out when taming, these dudes can carry rabies

Why do they disappear after I leave the cave I use mobile to btw and I wanna take an Onyc and it’s my first time doing so

-Angel

They also eat mushrooms on mobile. I don’t know about Nintendo or any other modes.

Found in almost any cave just look for them but be careful if low level

Simple kibble does not work, DO NOT USE IT!

You don’t have to knock them out to tame then and I wish they were bigger so I could ride them

Lead the onyc out of the cave and make a small cage using stone walls and door frames to trap it, then just feed it the mutton or prime meat you brought

Remember they are passive tame use a chillie suit

Trap it, shove meat up it's butt without it noticing, yet not really sure, how do they not feel something going up their bumholes? Anyway that's off topic and then you have a tamed rabie monster.

Be careful, they give you mega rabies. Do not go in to it’s territory, or else, you suffer a mega rabies

Build a wooden base with window walls and reinforced windows. Attack the Onyc with a bow of sorts and let them come to the window while it’s open. They can’t fly threw the window and you can kill them with a pike. Obviously this dosent work if you encounter a few but if there are a lot this works great!