Editor's note: This is part of a series of videos offering an up-close perspective on the animal kingdom. A special 360-degree video camera system was set up in zoos and other facilities to show ...

About 30 of the venom-resistant predators were released on Amami Oshima, a Unesco World Heritage site, in the late 1970s to keep down the population of habu, a pit viper whose bite can be deadly ...