You can tame this fella while he’s little just like you would any cute fuzzy creature such as a jerboa, pop a tranq in its butt and feed it plant species Y seeds or crops and berries. Alternatively you can place element into your last item slot and use it near the ferox. However, this method can get rather messy and is not advisable. Save yourself the element and the fleeing for your life and just knock it out.
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. Please if this was helpful take it to the top.