Look into the elements that lead to a shark's intelligence - Swimming with Roboshark - BBC Earth

Sir David Attenborough looks into why sharks are one of the most successful predators on the planet. Watch this interesting short video on the basic elements of a shark and why sharks are more intelligent than most other fish. From the BBC documentary Smart Sharks: Swimming with Roboshark. Watch more high quality videos on the new BBC Earth YouTube channel from BBC Worldwide here: http://www.y ...