Ok so I'm working on my ac(wolf). So I need two ? Answered. 1 does a wolf bite attack and the added trip happen as part <of> one attack.
Short answer yes.
Wolf attacks.
If he hits he deals damage.
If he deals damage he attempts a combat maneuver check*
If the combat maneuver check is successful the opponent is tripped.
2 with spring attack does the wolf bite and trip than get to move away.
Yes, he can, whether the trip is successful or not. (mind you, he'd be better off staying there if its successful for the AOO and springing away if it wasnt)
*Some people don't consider the trip a rider on the bite, but some people do.
Just a simple correction on BNW. You do not need to deal damage to activate the trip feature, you just need to hit. If the damage is negated by DR or something, the trip still activates.
Trip (Ex) A creature with the trip special attack can attempt to trip its opponent as a free action without provoking an attack of opportunity if it hits with the specified attack. If the attempt fails, the creature is not tripped in return.
Damage reduction: Whenever damage reduction completely negates the damage from an attack, it also negates most special effects that accompany the attack, such as injury poison, a monk's stunning, and injury-based disease. Damage Reduction does not negate touch attacks, energy damage dealt along with an attack, or energy drains. Nor does it affect poisons or diseases delivered by inhalation, ingestion, or contact.
So its a matter of some debate which of those lists a trip is on. It shouldn't matter THAT often. With 1.5x strength on the bite you should get a few points through on just about anything.
I see both sides of the argument. The trip definitely seems to be a "special effect that accompanies the attack." So, could be negated by DR.
On the other hand, it negates "most" not all special effects, and Trip seems very different than poison and disease.
I would probably yes you should still get the trip, since the trip ability only requires a hit and not damage.
Part of it is it's hard to imagine how the poison gets into you if you aren't wounded, but you can totally imagine a wolf grabbing onto something its teeth can't damage and pulling it down.
I see both sides of the argument. The trip definitely seems to be a "special effect that accompanies the attack." So, could be negated by DR.
On the other hand, it negates "most" not all special effects, and Trip seems very different than poison and disease.
I would probably yes you should still get the trip, since the trip ability only requires a hit and not damage.
Part of it is it's hard to imagine how the poison gets into you if you aren't wounded, but you can totally imagine a wolf grabbing onto something its teeth can't damage and pulling it down.
Even the monk's stunning fist works on the logic that 'I hit you upside the head so hard you have to wait for your brain to stop rattling'. If they didn't even budge, then how would the brain rattle?
But a trip is something people can do as a maneuver even without a bite attack. The trip ability just means that the mouth is well suited to multitask.