Unfortunately, as of today’s date (April 4, 2025), on Ultimate Mobile Edition Rhynios are affected by a very pesky glitch: they refuse to follow you! That means when you’re raising one, just hope that they do not request to walk for imprint, because they will not move.

I discovered this the hard way when raising a low-level one that I call Boneglue— who earned his name because he would not move and it was like his bones were glued in place, and also because I was tempted more than once to turn him into cementing paste glue. (Not a terrible idea if you’re low on that stuff. Rhynios are surprisingly easy to obtain.)

Can find Asc Saddle BP in Swamp Cave

Now that they've come out I've tested them a few times to try and see how they're tamed.

You wanna grab a tame (I used gigas), preferably with good stats and/or one you don't mind losing - and bring it to wherever they spawn on the map you're using. You should go off and kill a Rhynio (any gender) on your own first, or with said tame so that you can harvest a pheromone from its corpse. Once you have that pheromone, feed it to the tame and then go and find another Rhynio (I believe only females can infest your tames, correct me if I'm wrong!) And aggro it to your tame while the pheromone is affecting it. Keep your tame on passive and let the Rhynio do it's thing! You'll have to shoot the Rhynio while it attacks your Dino, and get it below and certain threshold of health. It'll then perform an animation as if it is about to spit resin, but will do some sort of dive/corkscrew into the tame and voila! Your tame is now infested. Your tame will receive strange cravings while it incubates the baby Rhynio, and they're strange. It can be stuff like element it wants, ranging from consumables like battle tartare to even ammonite bile and achatina paste, all kinds strange things. Once the incubation timer goes down, your tame will die and out will hatch a juvy Rhynio! They won't aggro onto you when you hatch them (at least not in my experience) so super easy to just run up and claim them!

You also can't breed them, I don't think. Doesn't let me anyway, which isn't fun.

Can go underwater so pump it with oxygen and stam!

Ok. One of these things killed my argy level 100 with 3000 health and she died so fast. So I came back to the swamp on Big Bill. My level 97 spino. I quickly got the pheromone then I went home got on Titan my bronto Bill followed us we sat at a red wood edge. We accidently killed the level 25 female but a level five impregnated Titan. I couldn't get any cravings the baby was born I named him Titan after his mom. And after giving him a saddle I killed 6 trikes before he was even level 10. TAME THESE BUGS

Big mosquito more dangerous and another use for resin very good flyer not gonna lie tame if you can

If you’re taming it on ARK: Ultimate Mobile Edition (or new ark mobile), its spawn rate is bugged and instead of being as rare as intended, it’s EVERYWHERE. If you play on that version, fly extra high above the swamps when you travel.

Dude, these things have taken so many of my spinos and pts and argys these guys are so annoying like you cannot go into the redwoods because I’m trying to get a thylacoleo currently, and I can’t get it because I cannot get into the redwoods

1. They are not rare literally the swamp is theirs

2. They are fast as hell so you won’t able to cut them off

3. Their attacks are no joke, bro 1 shot my high level pt when we out of stamina and land, don’t even know if that’s sap or lava

When you wanna get rid of them, I haven’t tried, but you may lure them to a big dino like a bronto or something and wait for that them fighting then you shall run like your mom chasing you 🤦🏻‍♂️

I tried to do that with smaller stuffs but bro did not give up on me

Don't fight megatheriums with it

I tamed one. Mother rhynio- lvl 125, surrogate mother-- lvl 205(base 193) bronto. I GOT LVL 31 Baby!!? Feels like I wasted my hard tamed bronto. For this low lvl I should have just used a trike.

On mobile they are NOT rare

if you seen one there is always one more waiting to kill you

you can't outrun it, if it agro on you kill it or leave your mount or lure it to nearby large dino

avoid it unless you are planning to tame it

They don’t have 900 base health, they have 1400 base health

Put sap in inventory to use abilities. For Xbox, to carry things (RB &RT) to use armor ( RB& right analog) to change type ammo (RB& LT). You can’t use melee attack while carrying things like you can with wyvern.

3 spawned out of nowhere I was with my argy

My argy killed all 3 of them with losing under 1k health

It will take traits from the host creature this includes stats, and colors. I'd advise using a high stat giga, or carch, with insane mutations, even a rex will do

Two taped with an argy, argy level 150 Ryno level 135

#GodmodeArgy

They spawn in the swamp -Tested

The rhniognatha was first thought to be thylacoleo sized judging from the dossier however a recent picture of it being as large or larger then a Rex and carrying the Rex, it is speculated that depending on what creature you attach it’s enzyme to it will inherit the size of the creature.

The last sentence is speculation proposed by Syntac and has not been confirmed

A similar level spino with at least 2000 health should be able to beat one of these buggers if fought only on ground close range