Ya any ranger secondary can get pet, the Skill is Charm
after you charm a pet, whenever you goto battle you must have charm equiped or the pet wont come with you. And if you switch from ranger to something else and then switch back to ranger you will still have your pet.
To change the pets name just type /petname Boobie
or something like that.

Btw with that pvp build I can take on 2 Warrior attacking me at same time with no backup heheh.