If all else fails, immobilization of the mob - by Bash - can be a good alternative against non-boss mobs.
Growling at a critter sometimes causes the critter to run in fear instead of coming to you, though certain ones will attack you (such as frogs).
Has no Rage cost.
You get this ability automatically when you get Bear Form.
As of patch 4.0.1, Growl no longer has a miss chance (even with +0% hit). Prior to 4.0.1, Growl followed the following rules: It was treated as a spell. It couldn't be cast when silenced and it had a 17% chance to miss raid bosses (in contrast to the 8% chance to miss boss mobs for melee attacks). So even if you are melee hit capped (263 hit rating at level 80), Growl's chance to miss was still 9%. This 9% gap was mostly covered with Glyph of Growl (which was removed in 4.0.1).