On the marshes of Northern Argentina, Sir David Attenborough presents the birth of one of the largest snakes on the planet, the Anaconda. Brilliant wildlife...
For more WTF Video Check Out: animal.discovery.com An unfortunate dog gets caught in an anaconda's suffocating grip. Watch and learn how this dog is rescued...
Unlike the majority of snake species, anacondas give birth to live babies - sometimes 40 at a time! See All National Geographic Videos video.nationalgeographic.com