Nature Shock

Latest Episodes

• Season 4 Episode 1: Natureshock: Killer Squid Invasion

  Documentary exploring the advance of the Humboldt squid, giant, predatory cephalopods that are swarming across the Pacific Ocean, consuming everything in their path. Former US Special Forces diver Scott Cassell reveals uses hi-tech gadgets to determine whether the creatures are working together to launch co-ordinated offensives, while marine scientists William Gilly and Danna Staaf detail the Humboldt's enormous reproductive capabilities

• Season 3 Episode 4: Nature Shock: Death Fog

  On August 21, 1986, nearly 2,000 people living near Lake Nyos in north-west Cameroon dropped dead, severely depleting the populations of three lakeside villages. The documentary examines the circumstances surrounding the tragedy, questioning whether the eruption of carbon dioxide pockets at the bottom of the lake could have produced an odourless toxic cloud deadly enough to suffocate the locals

• Season 3 Episode 3: Elephant Graveyard

  An examination of the media uproar that surrounded the deaths of five elephants near a Bengali village in May 2007. Intensive investigations concluded the creatures were killed by a lightning strike during a fierce electrical storm, but some experts remained unconvinced. This programme explores allegations of foul play by the Indian state's Forest Department, and questions whether the animals could have been poisoned