Imagine a serpent as long as a small plane, weighing over a ton! This was Titanoboa, the prehistoric king of the Amazon. Discovered in Colombia, this colossal boa constrictor-like snake, reaching up ...

Sixty million years ago, not long after the asteroid impact that ended the age of dinosaurs, a different giant emerged from the swamps of South America. Titanoboa cerrejonensis was unlike any snake ...