Gregory Erickson

A high-tech autopsy on a Nile crocodile unlocks secrets behind its hunting prowess.

A maneating crocodile terrorizes a town in the Philippines until a team of brave hunters captures a 20-foot-long super croc. But they begin to wonder if they caught the right crocodile or if there is an even larger one out there.

Dallas Campbell delves in to the Horizon archive to discover how our ideas about dinosaurs have changed over the past 40 years. From realising that lumbering swamp dwellers were really agile warm blooded killers, astonishing new finds, controversial theories and breakthrough technology have enabled scientists to rethink how they lived and solve the mystery of their disappearance. And they can even reveal whether dinosaurs might still be with us today.