Steve Peterson, Special to The Denver PostKellie Rowan, right, gives a snack to Koko, a prehensile-tailed porcupine, while Kathy Imel and Judy Kimminau witness the moment. "Doo At The Zoo," benefiting the Denver Zoo, at the Denver Zoo in Denver, Colorado, on Thursday, June 16, 2016.Steve Peterson, Special to The Denver PostCharlie Monfort; Denver Zoo President and CEO, Shannon Block; and representing Davita, Jodi and Javier Rodriguez.