Yes, sharks still do exist.
They live In The Oceans.
Yes. They are very rare but they do infact exist.
Fishing
It does not exist.
Great white sharks still exist.
Yes, but make sure that you have a biggen enough aquarium. :/
NO because sharks can die without water.
There is a professional wrestler who goes by that name, yes. He isn't actually a shark, of course; it's just a stage name.
no i ate it, was yum.
Megaloden sharks are extinct. So they do not exist now.
According to certain information, there is no such thing as a 'unicorn shark', but there is a type of Whale called a NharWhale, which before the whole entire creature was discovered, the horns of the creature were found and were believed to have been the horns of Unicorns. But then they were discovered and they were not Unicorns. Even though Unicorns do exist, they only exist in Magical Worlds far from this dimension, so they could not possibly be realted to unicorns.
I THINK THE THREATS ARE NETS AND FISH HOOKS AND PEOPLE KILLING THEM
I think you are referring to an ancient type of shark. There are both a shark and a dinosaur with a similar name, although the dinosaur is called Megalosaurus.