how do they know its a shark? to me it looks like some other fish. just the way it flaps all crazy to me doesnt seem like it was a shark. or them surfer bro's saying its a shark to make them look more bada$$ compared to say a dolphin which is beta. but pretty cool video.
im with Nikon on this one... hard to say for sure it actually is a shark? either way still takes a bit of luck and great timing to catch that on video...