Giant Snakes. The serpents of our nightmares. Reaching more than 30 feet long and hiding in the swamps, the trees and the basement. Today's giant snakes are as big as they've ever been in their history, and they have the appetites to match. Search For The Supersnake dives into these reptilian marvels of engineering. Some 100 teeth, 300 vertebrae, 600 ribs, and 10,000 muscles work together to form one of nature's most elegant predators. But what are the limits of these enormous serpents? How big can they grow, constrict and consume? National Geographic debunks the internet tall tales while revealing startling truths about the seemingly limitless capacity of these totally tubular predators.

• Lisa Ling
• Moazzam Begg