Koyaanisqatsi

A day in the city of Berlin, which experienced an industrial boom in the 1920s, and still provides an insight into the living and working conditions at that time. Germany had just recovered a little from the worst consequences of the First World War, the great economic crisis was still a few years away and Hitler was not yet an issue at the time.

Werner Herzog's documentary film about the "Grizzly Man" Timothy Treadwell and what the thirteen summers in a National Park in Alaska were like in one man's attempt to protect the grizzly bears. The film is full of unique images and a look into the spirit of a man who sacrificed himself for nature.

The bleakness of Antarctica is a fallacy. The ice continent is full of life and offers a biodiversity of which only about two percent are known. Much of it is under water and could determine the future of human beings. When the northern lights cover the ice landscape in summer, the animals in the Antarctic are in a paradisiacal state. Whales blow their fountains in the sky, penguins fly like small rockets into the water, seals dive for crabs under the glittering ice floes. From the bay of the Ross Sea to the ice shelf, from the huge penguin colonies to steaming volcanoes, a life in rhythm with the ice. But the consequences of climate change are slowly becoming apparent here too. While some species are dying, others are spreading. They could bring new viruses and bacteria with them, and new dangers for humans too. The structure of nature has gotten off course. How many generations will still be able to experience the magic of Antarctica?

NOVA: Extreme Animal Weapons From lobster claws and dog teeth to bee stings and snake fangs, every creature depends on a weapon. But some are armed to extremes that make no practical sense - whether it's bull elks with giant 40-pound antler racks or tiny rhinoceros beetles with horns bigger than their body. What explains giant tusks, horns and claws that can slow an animal down and even impair health and nutrition? Showcasing astonishing wildlife cinematography, Extreme Animal Weapons investigates the riddle of outsize weaponry and uncovers a bold new theory about what triggers an animal arms race. In creatures as varied as dung beetles and saber-toothed tigers, shrimp and elephants, the same hidden factors trigger the race and, once started, these arms races unfold in exactly the same pattern. In this enthralling special, NOVA cracks the secret biological code that underlies nature's battleground.

Beauty on the Wing: Life Story of the Monarch Butterfly is a 56-minute narrated film that unfolds along the shores of Cape Ann and in the heart of Mexico’s forested volcanic mountains. Every stage of the butterfly’s life cycle is experienced in vibrant close-up, from mating to egg to caterpillar to adult, and set against the backdrop of sea and forest, sun and wind.