Hidden Kingdoms: Under Open Skies

Documentary revealing the survival techniques used by the animal kingdom's smallest creatures. North America's Sonoran Desert is home to the grasshopper mouse, which is capable of disarming scorpions and centipedes twice its size, and displays a power and athleticism that enables it to avoid the attentions of rattlesnakes and tarantulas. In Africa, the elephant shrew, known as the sengi, employs speed to keep its distance from predators, following a meticulously constructed - and maintained - network of tiny racetracks in the savannah. The film concludes with Hidden Kingdoms Revealed, a 10-minute report on how the documentary was made. Narrated by Stephen Fry