The Dadanawa Ranch in Guyana covers 3,000 square miles of wild, remote country. Across its savannahs roam 30,000 head of longhorn cattle, and in its swamps and forests live some of South America's most exciting animals-the giant armadillo, the jaguar, the harpy eagle, the jabiru stork, and the giant ant-bear. Stanley Brock, the manager of Big D, is also a naturalist and animal collector and he gets to grips with all these giants, as well as the largest and most powerful snake in the world, the anaconda.