The article discusses the importance of donkeys as work animals in the past. Donkeys were once essential for various tasks, such as transportation and farming. The documentary explores the history and significance of these intelligent animals in high definition. Donkeys, also known as "Kluge Esel" in German, played a vital role in human civilization and were indispensable for their strength and endurance. Through this documentary, viewers can learn about the valuable contributions of donkeys throughout history.