2: Under the Cloak of Darkness. For many animals, being active at night is one way of escaping daytime predators. But hunting forfood at night requires sharpened senses, stealth and the skilled use of force. So wildlife sound recordist Chris Watson discovers on his trip Down Under when he finds himself staring into the jaws of a saltwater crocodile, encounters a snake in the dark and hears how some fancy footwork helps kangaroo rats keep their predators at bay. Producer Sarah Blunt