A Bad Situation

CGI: An octopus' tentacle wrapped around a diver's neck. Naturalist Doug Pemberton and his diving partner have set out on a diving trip to film underwater. They discover the Giant Pacific Octopus. They find the animal, who retreats quickly into its den. When Doug goes in for a closer look, the octopus comes back out and starts to grip tight onto Doug.

Photograph by National Geographic Channels