Constantine "Con" Slobodchikoff (born April 23, 1944) is an animal behaviorist and conservation biologist. He is a professor at Northern Arizona University where he studies referential communication, using prairie dogs (Cynomys gunnisoni) as a model species. Much of his recent research has shown a complex communicative ability of the Gunnison prairie dog alarm calls. In early 2008 he formed the Animal language Institute to create a place where people can find and share research in animal communication, including language.