This set contains four NOVA DVDs: Treasures of the Great Barrier Reef, Kingdom of the Seahorse, Shark Attack! and Private Lives of Dolphins.

Shark Attack!: A flash of monstrous teeth. A streak of blood in the water. And a terrified surfer paddles desperately for shore. Is it simply mistaken identity --a surfboard with arms being taken for a sea turtle? Or have the tiger sharks developed a taste for human flesh, and begun to deliberately hunt people down? Spy on these predators in action -- stalking and snatching up seal pups, albatross chicks, and other unsuspecting prey -- and witness a shocking, seal’s-eye view of an attacking shark. Then, decide for yourself if it’s safe to go back in the water.

Private Lives of Dolphins: Graceful, intelligent, and playful, bottlenose dolphins are not only the friendliest wild animals, but also the most complex. Their easygoing nature makes it easy to forget that dolphins are wild animals. Now, after decades of study in their native surroundings, researchers share with NOVA their fascinating findings regarding dolphins’ brainpower, society, evolution and strikingly human traits.

Kingdom of the Seahorse: Take a tour of the complex and beautiful world of the seahorse--from an underwater enclave in Australia (where their unique mating dance is recorded on camera for the first time) to the bustling apothecaries of Hong Kong, where heaps of harvested seahorses feed a steady demand. Then voyage to a small seaside village in the Philippines, where one biologist makes it her mission to come up with a conservation plan that will sustain human and seahorse residents alike.

Treasures of the Great Barrier Reef: The brilliant colors and extraordinary creatures of the undersea world are revealed as NOVA takes you on this dramatic tour of the wonders of the Great Barrier Reef off Australia. This adventure down under will amaze even the most experienced divers, as extraordinary camera techniques reveal microscopic details of life and breathtaking panoramas of millions of schooling fish.