This is how you tame it
1. Knock it out
2. Let your tribe mates do the work
3. Ride it around and claim you solo tamed it

At lvl 140, it took 50 minutes to starve tame with 25 mutton at taming effectiveness 97.3% (+68lvl).
About 30 tranquil darts with a 210% longneck rifle and 10 trans arrows with a 241% cross bow.

It kinda looks like an Allo with feathers. Kinda cute. Ima go pet it, and holy sh*t it's not cute! Run for your life!

This Smaller T. rex furry is able to Spam roars which either buff its allies attack power by 25 percent oooor or scares enemy/wild Dino's away the bigger the Dino the more scare roars it will take to make it feared making a Dino feared will make it walk the opposite way of you and unable to do anything else for round 20 or 30 seconds They also look like a really good pillow besides dodos pretty much a dodo and a Rex fucked and this epic shit came out

Doesn't eat for a while after knockout. BE PATIENT

Sprints slightly faster than an allo, easy to maneuver, can go over obsticles similar to an allo, stamina drain and recovery somewhat similar to allo, slightly more than a Spino and slightly less than a Rex with damage per hit, health and weight equivalent to a Rex, one of the roars can scare off almost all dinos (some need to be roared at more than once) which is great for protecting an unconcious tame, the other roar bolsters the combat prowess of nearby tames and can temporarily make wild carnos an ally. Yutyrannus is an amazing mount to have. There are a few cons though. Very slow attack speed, if standing still you have to wait for the attack to finish before you can move again (sounds silly but try it and see what I mean), has a lower starting melee damage percentage when tamed and gains less per lvl when compared to mounts of similar size (ex. Yutyrannus starts with about 260% and gains about 4-5% per lvl up, Rex starts with about 330% and gains about 5-6% per lvl up), low dps.

It has feathers, its fluffy, it is the tickle chickens brother

Way faster than a rex! Kite it into a good area or trap and watch out for any other carnivores that it can buff with that almighty roar. Unless you wanna be shredded meat of course!

This thing is the war general, i take it on my large raids

Don't worry he won't bite just look how fluffy he is

These things are incredibly useful. When taming, however, they have one fatal flaw: They're morons. They will run around and attack EVERYTHING regardless of how damaged they are or how strong the opponent. They also fancy themselves to be great swimmers. Flying around the tundra you will see many swimming around until they meet their untimely doom. Please tame as many as you can to help save them from their own stupidity.

The fear roar doesn't work on rexes and bigger dinos and makes some dinos turn aggro. The ally boost effects dinos for different rates of time.

They spawn mostly in the Arctic to my knowledge, they arn't hard to trap, just use a taming raft.

I tamed two solo. One on the Island and the other on The Center. I used terrain to my advantage. One thing I'll say is forget the carnos. Tranq the yuty until it runs. Use the time to kill the carnos since their leader is booking it. Then finish tranqing the yuty.

When trying to knock it out, if it roars it resets torpor like a giga.

JSYK, the no damage to large creatures bug was supposedly fixed, so try taking on a brontosaurus or something just to be safe, and if it can be killed, then go kill some gigas.

Takes as long as a quetz to raise. Really annoying considering it has similar stats if not the same as a Rex. Pretty cool chicken doe.

Be careful when attempting to approach a Yutyrannus as it may have Carnos with it (That are probably damaged buffed), if you have a quetz (or anything that can pick up Carnos), attempt to grab the carnos to draw them away from the Yuty (Or kill them outright, although the Yuty may take damage), making it less dangerous. At this point, when the carnos are gone, build and lead the Yuty into the trap WITHOUT A DINO. If you bring a dino with you at this point, it will likely be scared from the roars, screwing you over. After the Yuty is detained, it's a simple wailing of torpor till the big fluffy dinos gives up the ghost, which is when you feed it to have a cute, deadly, strength inducing badass that is the Yutyrannus!

RUN.OR.DIE.
IT can stun you easily like Microraptor or Baryonyx. When taming it gry to be not THAT close to him, or you can easily die. Must tame on PVP id you want some defense In your base. (Sorry for my bad english XDD)

The kibble to get for this is cancer. Takes a tribe to get the kibble ready.