Inside the world's oldest living rainforest that inspired Avatar

Inside the world's oldest living rainforest that inspired Avatar

The crocodile lies still in the water, its eyes watching us like tiny yellow moons. Above our heads, a flurry of white egrets billows past as the light of the sinking sun reflects off the river's metallic surface. My guide Alex gestures at the croc, which causes barely a ripple as it glides away lazily. 'If you tried to design a creature like that from scratch, you'd need a super computer,' he says. 'But a couple of hundred million years of evol…