PHOENIX, 2015-11-20 — /EPR Retail News/ — More than 20,000 pets found their forever homes last week during PetSmart’s National Adoption Week held at the more than 1,400 PetSmart stores across the U.S. and Canada. The week-long event is conducted in collaboration with PetSmart Charities and its adoption partners – comprising more than 3,000 local animal…