Niall tracks elephants in Nepal's Bardia National Park to investigate reports of animals that are larger than other Asian elephants.
Niall goes to Australia to capture a saltwater crocodile and take its measurements before releasing it back into the wilderness near Darwin.
Adventurer Niall McCann's encounters with the world's largest and most dangerous animals are chronicled in this series, which begins with a trip to Venezuela to study anacondas.
Niall travels through Louisiana swamps to pursue stories of monster hogs, but also to discover just how big the feral pig problem really is.
One of the largest, heaviest birds in the world, the cassowary is territorial with a reputation for killing people; in Queensland, Niall discovers a small group of cassowaries clinging to life after human development destroyed its environment.
Niall pursues legends of man-eating tigers in Nepal; he works with locals to find a big cat responsible for killing their livestock and discovers the truth behind the legends of giant man-eaters.