Biggest and Baddest

Niall is back in Louisiana for investigations into three separate creatures: the alligator gar fish, the bull shark and the alligator snapping turtle. He learns quickly just how dangerous each one is.

In Florida, Niall joins python hunters Ruben Ramirez and George Brana, discovering these elusive serpents in some of the most unexpected places.

Exploring the steamy terrain of Uganda's Bwindi Impenetrable Forest, Niall travels with a team of gorilla doctors as they treat sick and injured mountain gorillas.

Niall joins Dr. Andrew Plumptre, a biologist and lion researcher, on a mission to save the lions of Uganda.

In the villages of Uganda, conflict between humans and Nile crocodiles is on the rise. Niall joins a team from the Uganda Wildlife Authority tasked with capturing and moving these dangerous creatures far from human populations.

Niall discovers some of the world's most toxic and venomous reptiles in La Gran Sabana, Venezuela.