Natural Fighting

This proficiency allows humanoids with natural weaponry (claws, fangs, tails, etc.) a +1 damage bonus on all natural weapon attacks. In addition, they receive a free natural attack beyond normal attacks they are allowed. A successful proficiency check must be made at the beginning of combat to gain the benefits of this skill. Failure indicates that the benefits cannot be used for the duration of the battle.

[Complete Book of Humanoids]