Spinosaurus was the largest dinosaur carnivore in history but was long known only from the photographs of a single partial skeleton lost to the world in a World War Two air raid. That, of course, makes paleontologists all the more curious and determined and additional fossil fragments have gradually been found. This program reviews what they have uncovered and what they suspect.

Just like the director did some ago in Microcosmos, this is a project in which we can see the advances of film-making, the one that can show us images that we had never seen before. From the crystallization of Vitamin C through and electronic microscope, to the sea horses love dance, from the amazing life of the walking fish to the love parakeets, from the beautiful dance of Jellyfish to the lava rivers, every single image is filled with color, life, joy and some kind of mystery.

David Attenborough narrates a documentary about different species of bear. Spy-cams blend into the environment to capture unprecedented footage of wild pandas, grizzly and polar bears, and also the only South American species - spectacled bear cubs. Underwater, we follow grizzlies diving for salmon and, in the woods of Minnesota, we spy on black bears and their tree-climbing cubs.

A documentary on the current state of medical marijuana in America. Personal stories from patients, doctors and caregivers verify its medical effectiveness while leading activist rally support to end prohibition.

Hitler's state-of-the-art killing machine the Bismarck was thought to be invincible but, for all the wild claims, it now lies at the bottom of the Atlantic Ocean. Despite being the biggest, most powerful and most heavily armed battleship of her time, she was sunk just days into her maiden voyage. Who Sank The Bismarck? features historical reconstructions and footage from the first manned dive to the Bismarck's wreck to reveal the German weaknesses - and Allied strengths - which led to the once-mighty ship's demise. Discover the tactical errors which exposed Hitler's mammoth sea weapon to Allied attack

The term "methadonia" describes a borderland for recovering heroin addicts on methadone maintenance. Here, addicts pass their time mixing methadone with benzodiazepines ("benzos") - a class of drugs used to treat anxiety and insomnia that includes such brand-name prescriptions as Xanax, Klonopin and Valium - which enhance their high, and keep them stuck in a gray area between addiction and "straightland."