Easy to knock it out, harder to tame it. I tamed two theris and mated them, i got twins and i was very happy. Taming it its very hard, in order to knock it out, be at a high rock, then get tranq arrows then knock it out.

Use large bear traps to trap it and tranq it

Make sure the rock you’re shooting from is high enough... also will chase you across half the damn map. RIP me

I was on a direwolf and i jumped down a hill and landed next to a high level therizino it got mad at me and started attacking me and my direwolf was wearing an ascendent helmet with 360 durability and it broke when my direwolf gor hit 4 times

If you are going to fight this thing head on get spears or a pike and go around it in circles constantly stabbing it. It had worked for me before but I don’t really recommend it because it was a low level

If you tame one one of these... YOUR IN LUCK!!! Tickle Chickens can help you get Fiber, Wood, Berries, Etc. Also did I mention that you can bring them to the Cold side of the island on mobile Ark. These handsome and beautiful little cuties can help you with gathering things for your forge table! In fact, they can raise your Exp. high if your level lower than the expected level to get its saddle (lvl. 69). To tame it, I recommend to stay by its side while it’s sleeping after knocking it out. Then apply soothing balm to speed up the process. Give it vegetables. If the torpid happens to drop fast, use bio toxins. [reminder: If your a noob, wait until you get a crossbow and arrows to knocks it out.]

Take the high ground where it can't reach you and start using tranq arrows/darts to knock it out. Either stock up on narcoberries beforehand or after and you are set.

If you can’t fight it for any reason, DO NOT make the mistake I did. This thing will chase you for miles, even though it’s really slow. You run until you can’t, then run more. It will always be behind you.

To kill it for my first time, I took my rifle and a bunch of bullets and attempted to kill it. I died 3 times before it finally died, each time grabbing my rifle again and trying and failing until it finally worked. A better way to kill, if no intention to tame at all, it to use narcotics on it until it passes out, and then kill it in its sleep. At that point it would be easy to tame, but it requires lots of narcotics to keep unconscious, so if supplies are limited, or just that your only intentions are to kill it, just keep attacking it with whatever weapon you have. This works at almost any level, as long as you have at least 8-15 narcotic arrows.

At first, stay away at all costs. Although Freddy Couger here seems to be extremely powerful (which he is), he has a very low toupor rate, so only takes a few narcotic arrows and he’s down, whether you’re trying to kill him or tame, or just get away. But if you are trying for it’s tame, it has losses toupor fast, so bring plenty of narcotics.

any armor equipment will be destroyed by its attack, so running is better.

When you use bite it can knock out a creature and increase its torpidity! Beware upgrading the melee may kill the creature before it gets knocked out

So I was a level 23 I had a couple of Dinos with me one day after coming back from getting wood this thing came out of nowhere I was a idiot and led it back to my camp it killed everything and destroyed my base I went out on a trip with only a parasuar for transportation when I came back to my destroyed base I had tamed everything I could find meaning I had 7 Diplos 6 turtles 8 parasuars and 17 dodos Then I saw it I signaled the attack it was a hard battle but we won before My Dino’s killed it I knocked it out then let him feel pain then I finally beat him to death with a club that tickle chicken had payed

Therizino's are not passive tames's when they see you your DEAD and if you see them stuck in two trees don't hit them they will then escape and be able to kill you.

I had a metal base that was on the most western island in the southern isles and Dino’s never spawned there but then I stopped using it for a while and now there’s therizinosaurus’s everywhere and now I don’t use that base any more because I don’t want to waste my shotgun shells and my advanced rifle bullets trying to take them all out so I just go up to the volcano.

If you want to tame this thing then grab 3 large bear traps and 16 tranq arrows and carry a bunch of bio toxin in my opinion bring like 50 or 75 and bring berries like at least 136

I tamed a lvl 150 before via using 2x2 foundation and 2 walls high with a ramp on the side. All I used were stone. Took me long before I tamed it but it's worth. It can defend my base from anything,though she's only my resource dino.

Run this... thing.. killed all my raptors, pachys, paras. Man it has 1,745 health, that’s more than the alpha raptors health that killed me

They will literally migrate everywhere and some can come in duos and they will invade your space no matter how hard you try... Beware of this monster...

So I tamed one of these because I thought “why not”, so I knocked it out and started feeding it. I didn’t have any narcotics, but I had over 100 bio toxin. I waited 5 whole days, went through about 80 of the bio toxin, and almost died of starvation and dehydration for this thing. But it was totally worth it! That thing have saved my life soooo many times. Everyone should try to tame it.