Either find the Ferox Cave at 83.9,47.6 be careful as it is crawling with Polar Bears or go where there is always a snow storm and bring a Snow Owl,Bloodstalker, or Parasaur (Parasaur not recommended),find a Ferox using predator vision or spider vision then feed it element then grapple to a mountain and wait it out rinse and repeat, or for the Ferox cave build and enclosure large enough for the transformed version of the Ferox so it stays trapped and feed it element get it stuck let it go back to normal form and the redo it.
As of 3/28/20. Ferox will tame at the wrong level but once put in cryopod will correct to tamed level. A live 145 changed to 217 once in pod post tame. Also dododex is not accurate on x3 possibly x1. The same 145 took 20 element for full tame. At 5% per element.
Taming non violent my ass. To tame these you have to passive tame it using element. When you feed it once you should grapple to a nearby cliff and wait for it to get all cute and cuddly again. Repeat untill its tamed. It is worth it though. When its tamed it can go on your shoulder and when you feed it element it turns into the big “thing” and it is then rideable. Females have to be at addiction level 90% to be able to mate. You get a higher addiction level everytime you feed it element. A higher addiction level requires more element everytime you want it to transform. Nothing happens when it reaches addiction level 100% it just gets some new animations and it looks hyperactive and jittery. HAVE FUN!