If you want to know what really happens in dark and private places, there's a new way to find out. Amateurs are now making the hot new ocean films, thanks to crittercams.
Cameras strapped to animals have been used to penetrate ocean depths and reveal the secret lives of underwater animals. The latest deep sea cameras are the size of a flashlight and can be used under 3000 feet of water. They've been used on sharks, turtles, sea lions, and even penguins (see picture).
image: National Geographic