Michael Phelps Races A Great White Shark, But People Are Upset About The Video

Olympic great Michael Phelps races a 'great white shark' on Sunday as part of documentary on Discovery Channel.

The shark was in-fact a computer simulation rather than a actual great white but its swim speed was calculated using data collected from the real thing. Many were really angry about the fact the shark isn't real.

Phelps finished the 100m course in 38 seconds, two second slower than the 'shark'.