Steve Backshall investigates shark species around the world.
Steve Backshall meets a superspeedy shark. The mako shark can reach speeds of 50kph.
Steve Backshall meets the most ferocious shark of all: the great white shark.
Steve Backshall meets the most colossal shark in our seas, the whale shark.
Steve Backshall meets the most sinister shark in our seas, the ragged tooth shark.
Steve Backshall meets the most ravenous shark in the sea - the tiger shark.
Steve Backshall meets the hammerhead shark, a shark with some serious supersenses.
Steve Backshall reveals the supersucker of all sharks, the nurse shark.
Steve Backshall meets the snappiest shark in the seas, the lemon shark.
Steve Backshall meets a shark that is a master of teamwork - the blacktip shark.
Steve Backshall looks at the UK's very own gentle giant, the basking shark.
Steve Backshall encounters a seriously smooth shark - the silky shark.
Steve Backshall heads to Canada to learn about the sixgill shark.
Steve Backshall encounters the most striking shark of all - the thresher shark.
Steve Backshall meets the ultimate adventurer of the abyss - the oceanic whitetip shark.
Steve Backshall looks at a shark with sensational superpowers - the epaulette shark.
Steve Backshall meets the MOST MENACING shark, the bull shark.
Steve Backshall gets under the skin of the most graceful fish in our seas: the manta ray.
Steve Backshall tracks down the ultimate aquatic athlete - the blue shark.
Steve meets a shark that is the master of moves - the Caribbean reef shark.
Episode 20. Steve meets a night-time ninja - the whitetip reef shark.