Dan Levitt

New evidence has paleontologists questioning whether a third of all dinosaur species ever existed. Could some discoveries once thought to be distinct species, in fact, be the same species at different stages of development? National Geographic joins famed paleontologists—including Jack Horner, a contributing expert to the Jurassic Park films—who are challenging the long held belief that young dinosaurs looked like miniature versions of their parents.

Nuclear Nightmare: Japan in Crisis presents a comprehensive timeline of the massive earthquake and tsunami that triggered a horrific domino effect at Japan's Fukushima Daiichi power plant.

Scientists discuss the possibility of reverse-engineering the DNA of modern birds to recreate dinosaur species, instead of cloning fragments of dinosaur DNA extracted from amber and other ancient fossils.

This film explores the most astonishing predictions of Jules Verne and H.G. Wells. Michio Kaku contributes.