The Nashville Zoo could easily sit pretty in their its oasis off Nolensville Pike, waiting for school buses filled with field-trip-bound children. Instead, it consistently produces incredible events that appeal to people over the age of 12 (or 21, in the case of the recent Brew at the Zoo beer festival). One of the highlights of the animal social calendar is Wild Impressions, an animal art auction featuring paintings created by Nashville Zoo residents. The artists use their claws, paws, tails and — if they can be trusted not to eat them — paintbrushes to create one-of-a-kind masterpieces with nontoxic, environmentally safe paint. You may be surprised at the level of quality in these pieces, and I’m not just saying that because I’m currently staring at the charming painting of a pig snout that’s hanging on my wall. Proceeds from the event benefit the American Livestock Breeds Conservancy, a nonprofit group for zookeepers and people dedicated to professional animal care and conservation. Admission is $25 for zoo nonmembers, $20 for members, and includes entry to the auction, food, live music and a cash bar.