http://animalwise.org/2011/12/07/setting-his-own-dinner-table-spontaneous-tool-use-by-a-dingo/Setting His Own Dinner Table: Spontaneous Tool Use by a Dingo
The name tags kept disappearing, and the staff at Melbourne's Dingo Discovery and Research Centre was mystified. After romping around the grounds of the dingo sanctuary, Sterling, an 18 month old sub adult male, and his two canine companions spent time in an indoor enclosure that had a name tag posted on the outside of the steel mesh wall. The tag was positioned 1.7 meters above the ground, well out of dingo-reach. Still, it kept vanishing.