Gnoll Ferocity

 
Prerequisite(s): Gnoll, rage or frenzy ability.
 
Benefit: When you use your rage ability, you gain a bite attack. This attack deals 1d6 points of damage, scaling normally with size (see Table 5-1, page 296 of the Monster Manual), plus your Strength bonus. Alternatively, you can make the bite attack as part of a full attack as a secondary weapon with a -5 penalty on the attack roll (your other attacks take no penalty), but in this case you only add half your Strength bonus on damage.
 
Special: The DM may make this feat available to other animal-headed races if they are available in your campaign.
 
Source: Races of the Wild