The World's Biggest Cave

The courtship behavior of Great Bustards is studied. The male Great Bustard is considerably larger than the female. This impression is reinforced during courtship when the male dances in front of the female, showing the light undersides of its wings and inflating its throat pouch.

What strange forces saved one isolated section along the Upper Mississippi River from the repeated crushing and scouring effects of glaciers during the last two million years? And what pre-Ice Age throwbacks survived here in this unique geologic refuge that holds more Native American effigy mounds, petroglyph caves, strange geological features, and rare species than anywhere in the Midwest? These questions and more are answered in this captivating new documentary. A team of scientists embarks on a journey of exploration to expose both the science and threats behind three unique features of the zone - rare plants and animals, odd geological phenomenon, and striking remnants of a Native American pilgrimage like no other.

Smart as a Fox is a 1946 short documentary film supervised by Gordon Hollingshead. In this short film, a fox cub experiences life in the forest. It was nominated for an Oscar for Best Live Action Short, One-Reel.

There are few places on earth more forbidding and beautiful than Baja, Mexico. 800 miles long and 10 million years in the making, it is home to a punishing desert and the most diverse sea on the planet. Explore amazing ecosystems in the Sea of Cortez and join the hunt with charismatic mega fauna - great creatures that inspire wonder, joy, fear, and awe. From Emmy-nominated producer Michael Watchulonis and Emmy award winning cinematographer Johnny Friday. Captured entirely in 4K over a period of 4 years.

These Birds Were Made For Walking Few things are more wondrous than the gift of flight, but some birds have chosen to give it up – the question is, why? Whether it is to save energy, tap into new food resources, or invest in other skills, they all have their reasons.

The Southern Sea Otter was historically abundant along the California coastline until intense hunting pressures reduced their numbers to near-extinction levels. But now the otters are coming back, and with them they bring the potential for drastic change to the modern-day economics and ecology of the Santa Barbara Channel.

Sea otters are once again in peril after being brought back from the brink of extinction. An unprecedented number of sea otter deaths have occurred along the California coast in the last three years. Meanwhile, the Fish & Wildlife Services decision to eliminate their No Otter Zone from Southern California waters remains controversial. This fragile species threatened by pollution, infectious diseases, starvation, and competition with fishermen struggles for survival.

New Zealand is one of the most remote countries in the world. Owing to the great distance from continents and, as a result of intense volcanic activity, unique flora and fauna as well as extraordinary landscapes have developed in this island country. The settlement of humans over the centuries has naturally also had an influence on the landscape. This film is an invitation to travel across the diverse landscapes of New Zealand.