Some nice scenes. Different aspects of the snake life are described. The subject is far too wide for a 50 min. film. It leaves you on your appetite. It doesn't even tell about marine snakes, with its large population and powerful venom. It's only an overflight of the subject, to see if you are interested. My 12 year old son quit watching after 20 minutes. It would need at least a 3 hours documentary to cover it properly, well done if possible for such a specific subject, let's say by a BBC team, and I will be waiting for such a work. In the meantime, I will order Titanoboa Blu-Ray made by Smithsonian museum and available on Amazon.