How were dragons added to real-life background? An animator from "Dragons: A Fantasy Made Real" explains how CGI and real-life video come together to create dragon scenes.
John Sibbick, a world-renowned illustrator, imagined what dragons would look like if they existed. Their look was based on a mixture of dinosaur anatomy and scientific speculation.
How does dragon flight work? A scientist explains that a winged dragon would need to generate and store lots of hydrogen to keep it light. Gut bacteria make hydrogen, which a dragon would need to store in a special bladder.
Is the megaconda real? The evidence is spotty, but some say this monster-snake exists, reaching lengths in excess of 130 feet and weighing as much as 5 tons.
What strange things lurk deep in the heart of caves? Some believe that within the darkness live mysterious, flying bat-like creatures known as cave demons.
India has their own "great cats": tigers, lions and leopards. Watch as our crew tapes the villagers live among these amazing felines! (From "Great Cats of India," Season 1)