PUKE

Two journalists traverse the Grand Canyon by foot, hoping this 750-mile walk will help them better understand one of America's most revered landscapes and the threats poised to alter it forever.

Snakes, creatures with superpowers that have allowed them to adapt perfectly to their environment, play an essential role in the ecosystem.

Embark to Niagara Falls and witness its stunning beauty and a wide variety of wildlife—mammals, birds, and reptiles. Through the eyes of passionate scientists, uncover a complex world forged by stone and powered by water.

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their young. They walk, marching day and night in single file 70 miles into the darkest, driest and coldest continent on Earth. This amazing, true-life tale is touched with humour and alive with thrills. Breathtaking photography captures the transcendent beauty and staggering drama of devoted parent penguins who, in the fierce polar winter, take turns guarding their egg and trekking to the ocean in search of food. Predators hunt them, storms lash them. But the safety of their adorable chicks makes it all worthwhile. So follow the leader... to adventure!!

A documentary of insect life in meadows and ponds, using incredible close-ups, slow motion, and time-lapse photography. It includes bees collecting nectar, ladybugs eating mites, snails mating, spiders wrapping their catch, a scarab beetle relentlessly pushing its ball of dung uphill, endless lines of caterpillars, an underwater spider creating an air bubble to live in, and a mosquito hatching.

Documentary following researchers as they try to take the first-ever picture of a black hole. They must travel the globe to build a revolutionary telescope that spans planet Earth.

Two teenagers and their adventures in the breathtaking scenery of lake Saimaa.

With celebrated primatologist Jane Goodall, this documentary goes around the world to meet the individuals working hard to protect the world’s biodiversity for the future of the planet and the future of mankind.