SFS Standard Voracious Bite Feat 13

Source Galactic Ancestries pg. 41
You slurp residual nutrients as you dissolve those you bite. Whenever you inflict persistent poison damage with your jaws unarmed attack, you gain temporary Hit Points equal to half your level for 1 minute.
Special If you have the Suskillon Cutoff shirren heritage, whenever you inflict persistent poison damage with your jaws unarmed attack, you also gain a +2 status bonus to your next Recall Knowledge check to recall information about creatures with the same trait as the target for the next minute.

Traits

Shirren:A creature with this trait is a member of the shirren ancestry. Shirren are telepathic insect-like people searching for meaning after freeing themselves from the Swarm hive mind. An ability with this trait can be used or selected only by shirrens.