Bermuda Triangle: The Deadly Secrets

This film, three years in the making, The remote forests of Kalkalpen National Park in Austria, the largest area of wilderness in the European Alps, have been left untouched by humans for nearly a quarter of a century in order to return to their natural, primeval state. The landscape regenerates itself in dramatic cycles of growth and decay, and this bold hands-off method of conservation yields salient results: the lynx, absent from the area for 115 years, has returned.

Takes us to locations all around the US and shows us the heavy toll that modern technology is having on humans and the earth. The visual tone poem contains neither dialogue nor a vocalized narration: its tone is set by the juxtaposition of images and the exceptional music by Philip Glass.

In Astronomy Part 2, you will learn all about the planets, asteroids, comets, meteoroids, the layers of the sun, fusion, and more. The Standard Deviants make learning astronomy easier with their unique teaching style, which incorporates humor, mnemonics, and sophisticated computer graphics.

This series also covers the essential concepts of astronomy: gravity, the light spectrum, Earth's magnetic field, the solar system, the sun, Kepler's Law, the universal law of gravitation, the Doppler Effect, and much more!

Physics is a system of models of nature according to which all phenomena are explained in terms of matter and force. Sound confusing? It doesn't have to be! Whether you need help with high school physics, need to review for a college physics class, or you're studying for the AP Physics Exam, this physics tutorial will help you understand the basics, such as Newton's Laws, the Law of Universal Gravitation, Kepler's Law and more.

See the world's first MRI scan of a great white shark as Ultimate Shark reveals the extreme engineering and predatory abilities of one of nature's most near perfect predators. Hear firsthand accounts of people who survived harrowing encounters, including a surfer who was bitten on the arm and leg, towed by the surfboard ankle strap and miraculously escaped only with minor injuries. National Geographic demystifies the true motives and power behind their behavior.

Peter Gimbel and a team of photographers set out on an expedition to find and film, for the very first time, Carcharodon carcharias—the Great White Shark. The expedition lasted over nine months and took the team from Durban, South Africa, across the Indian Ocean, and finally to southern Australia.

A story told with no words but with the power of sound and visuals of unspoiled Patagonia.

A look at the baboon kingdom of Luangwa.

A look at the predators of the Savuti