Mark of Vermin

 
Prerequisite(s): Any Aberrant, Lesser Aberrant or Greater Aberrant dragonmark
 
Benefit: You can use any druid or ranger spell that normally only targets animals on vermin as well. A mindless vermin is considered to have a 2 intelligence when dealing with you, and can be calmed, charmed or targeted by wild empathy or similar abilities. In addition, you gain the ability to speak with vermin as a spell-like ability usable once per day (caster lvl 1). This is identical to speak with animals, but can only be used with vermin and vermin swarms.
 
Source: Dragonmarked