Colliders on mecanim animal.

I'm creating a prototype and need to shoot my wolf. Everything is working, but I don't know how I'm supposed to make my wolf collidable.

I'm using this logic:

• cast ray from bow, forward.

• damage target if it's living (known by tag).

• instantiate arrow according to hit.point and Quaternion.FromToRotation(Vector3.forward, hit.normal)

• make the arrow a child of hit.transform

This way, the arrow stays in the target.

However, I don't know how to set up the colliders on my wolf. I can't add capsule colliders to all the bones, because there are too many of them.

(this is around a third of all the bones)

What's an easier way to set up colliders on a mecanim animal?