In The Aquatic Spinosaurus, naturalist Steve Backshall reveals how this dinosaur had a unique advantage, enabling it to thrive both on land and in water. This video is excerpted from BBC’s Deadly Dinosaurs, a documentary series in which host Steve Backshall is on the hunt for the deadliest animals to have walked the Earth — dinosaurs — exploring features of several species and putting their abilities to the test to reveal the raw power of these creatures.