Three wildlife documentaries presented by Nigel Marven. 'Anacondas' takes Nigel on a whistle-stop tour of South America as he hunts for an Anaconda measuring more than 30 feet. First stop is Venezuela,where Nigel uses all his strength to wrestle Green Anacondas. Then south to Brazil where he finds a snappy 10-foot Yellow Anaconda engulfing a huge stork. Finally Nigel heads to the heart of the Amazon where he meets up with his quarry. Will it be the giant he craves? 'Piranhas' sees Nigel on a mission to find out the truth behind the legend of the Piranha. From breeding to feeding,birth to death,all aspects of the Piranha's natural history are uncovered with spectacular wildlife images. In 'Bull Sharks' follow Nigel on a journey across the globe to learn more about these incredible predators. In a series of hands-on investigations,Nigel explains how and why Bulls are the world's deadliest shark.