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.
Link (Ex) A character can handle their animal companion as a free action, or push it as a move action, even if the dont have any ranks in the Handle Animal skill. The character gains a +4 circumstance bonus on all wild empathy checks and Handle Animal checks made regarding an animal companion.
Share Spells (Ex) The druid may cast a spell with a target of “You” on her animal companion (as a touch range spell) instead of on herself. A druid may cast spells on her animal companion even if the spells normally do not affect creatures of the companion's type (animal). Spells cast in this way must come from a class that grants an animal companion. This ability does not allow the animal to share abilities that are not spells, even if they function like spells.
Evasion (Ex) If an animal companion is subjected to an attack that normally allows a Reflex saving throw for half damage, it takes no damage if it makes a successful saving throw.
Devotion An animal companion gains a +4 morale bonus on Will saves against enchantment spells and effects.
Multiattack An animal companion gains Multiattack as a bonus feat if it has three or more natural attacks and does not already have that feat. If it does not have the requisite three or more natural attacks, the animal companion instead gains a second attack with its primary natural weapon, albeit at a –5 penalty.