Zoo-archeologists, biologists, ethologists and geneticists are leading the investigation. For one thing is certain, the dog is still far from revealing all its secrets.

An adaptation of Leos Janacek's opera Prihody Lisky Bystrousky (1925), based on the novel Liska Bystrouska by Rudolf Tesnohlidek. It follows the life of Sharp-Ears, a fox who is captured by a forester as a cub and raised in his home prior to escaping back into the forest.