Is Submarine real?
NO.
Submarine, the massive great white shark, is completely fictional.
The scientists were not scientists.
The submarine sightings were fictional.
Shark of Darkness: Wrath of Submarine is a mockumentary (fake documentary) that Discovery came up with for prime time shark week.
Submarine is NOT real.
Read more about Submarine the Great White Shark Here:
So not only is animal planet lying to us but discovery is to