How do monsters grapple?

[Doug McCrae]

A monster that lacks improved grab, rake or constrict but has multiple natural attacks, such as an umber hulk. The text for rake makes it clear that such a monster can only make one Attack Your Opponent attack per round while in a grapple. But what about starting a grapple? Three attempts (for claw/claw/bite) or one? How many Damage Your Opponent or Pin Your Opponent attacks? One or three? Or is it two, as its BAB is +6, enough for an iterative attack.

 

[Arkhandus]

It would be dependant on their Base Attack Bonus, as with a normal character. If they lack Improved Grab or similar special capacities to get an auto-grab with a natural weapon, then they just have to do the grappling process the same way a human would. So if it's got a +6/+1 BAB, it can make two grapple attempts in the round.