So apparently everyone here freaks out about how hard it is to tame them and they're like you need a megalosaur and blah blah blah. No. Actually I reccomend that you have a few bolas and a crossbow. Find a pack and unless you intend to tame them all use the crossbow to kill the ones you dont want from a ledge. Then bola the ones intended to be tamed and knockout. I reccomend only ever taming one at a time unless you have a trap. For each ravager you'll never need more than 25 tranq arrows on a primitive crossbow. Taming food is easy. Just kill a nearby ovis. Hope this helps.