A bizarre video has emerged from the USA of a robot shark swimming through San Diego Bay.<br /><br />The robot shark appears to have at least two humans inside it who are presumed to have been piloting the strange vessel. <br /><br />Towards the end of the clip, the shark speeds up, dives under the water and then leaps into the air.<br /><br />The video was filmed by BMXer Shawn White on December 28.<br /><br />"At first we thought it was a jet ski but looking closer it had fins and a tail. I grabbed my phone and recorded the amazing sight," White told Newsflare.
