Six New Grant Categories; Now 10 Total, Offer Eligible Nonprofits in the U.S. and Canada More Chances than Ever Before to Apply for Funding for Initiatives Aligned with PetSmart Charities’ New Mission PHOENIX, 2017-Mar-22 — /EPR Retail News/ — PetSmart Charities, the leading funder of animal welfare in North America, today ( March 21, 2017) unveiled a…