Walking with Dinosaurs

Narrator:
[about the Liopleurodon] At one hundred and fifty tons, it is the largest and most powerful carnivore ever to live on the planet. This male weighs a colossal 25 meters and is big even for his kind. His size means hes probably over a 100 years old. Liopleurodon has a directional sense of smell, two separate chambers in his nose work in the same way as a pair of ears. pinpointing where a smell is coming from, a sophisticated tracking device. Steering the largest carnivorous jaws ever known.