What a great picture! Gidget, a 7 year-old dachschund (she is a minature smooth dachshund) catches a piece of the "prey" as part of a lure coursing demonstration in the Coliseum at the Wisconsin State Fair.
Here's an interesting story from GazetteXtra.com out of Janesville, Wisconsin. The short version is that the dog calms the kids down so that they can pay better attention to reading and learning to read.