The 45 foot long monster - named Titanoboa - was so big that it lived on a diet of crocodiles and giant turtles, squeezing them to death and devouring them whole. Weighing an impressive 1.25 tons, it slithered around the tropical forests of South America 60 million years ago, just five million years after the last dinosaurs were wiped out. Partial skeletons of the boa constrictor-like prehistoric killer were found in an Colombian coal mine by an international team of fossil hunters. To continue reading and watch the photos click here.