Sharks are one of the most dangerous creatures. They are only found deep in Oceans. They will swim around randomly and attack anything they see. Sharks can only be found at extreme depths and in open sea. They will not be found in caves or anything like that.
Sharks will swim toward you at high speeds. When you get close enough they will start biting dealing extreme damage. Ranged Weapons work best on these guys.
On death Sharks do not drop anything.