Deep in the heart of the Amazon, an uncharted lake emerges every dry season. It is rumoured that this secret lair lures the black caiman.
Richard Terry heads to Tanzania, where locals have made disturbing reports of a human-like beast attacking farmers on full moon night.
Simon and Siouxsie receive a distressed phone call about the massive invasion of snakes. Can they catch all the pythons in the city?
Appearances can be deceptive. Find out how life in the animal kingdom is just one big deception full of creative ways to trick the enemy or the prey.
This hour of World’s Deadliest is dedicated to the tough, feisty and fearless lady killers who can be more dangerous than their worst foe.