Lost River Predators

Unblinking red eyes glide along the silent black surface of the tropical river like faintly glowing embers in the dusk. Up to seven meters long and weighing more than a ton, the black caiman is probably the largest predator of the Americas and most certainly the least studied. Rainer Bergmaz travels to the heart of Guyana's Hinterland to find the shy and rare reptile.

An alarm call goes out and monkeys of all types throw themselves off high branches and out of trees to hide in terror. Overhead, a giant eagle easily twists and turns through the treetops, hunting for any animal caught out in the open. The Harpy eagle flies through the canopy always ready to seize its prey. Rainer Bergomaz searches for the Eagle in the canopy of Guyana's unspoiled rainforest.