Posted by Kirsten Pisto, communications Everyone has their favorite animal at the zoo, or maybe even a few, but we’d venture to guess that heaps of you have an especially soft spot for our oldest gorillas, Pete and Nina. The pair dines on Italian plums, a treat from their keepers. Video by Ryan Hawk/WPZ. Walking by the west gorilla exhibit, you can’t help but check in on the wrinkled pair. Nina, famously posing with her trademark stick and pink tongue, greets her visitors with a curious eye for people watching. Her attention to visitors has endeared her to hundreds of thousands of guests. Everyone knows her. The tiny, grandmotherly-gorilla seems to be the most adored among our youngest guests; and may have singlehandedly taught the children of Seattle how to stick out their tongues. (Sorry, moms). Pete, with his silver hair and balding head, has stuck by Nina’s side for all her 46 years. The gentleman of gorillas, his keepers say Pete is polite and appreciative of any attention