Kraken

Kraken or Lusca (Enteroctopus gigas), also known as Kanaloa (Hawaii) and Akkorokamui (Japan), are a type of giant octopus living in the Caribbean sea.

Overview
Kraken are Caribbean enteroctopuses (giant octopuses) famous for their ability to sink large ships. Kraken are extremely rare animals, with an estimated population of less than 100 individuals. They once inhabited all of the North Pacific Ocean and the Philipine Sea as well, but in 1873, the governments of Japan (known as Nippon at the time), China and Caribbean Republic started hunting them down so they could travel peacefully through the areas, and in 1935, the Hawaiian government (to whom Kanaloa were considered sacred) convinced the Caribbeans to stop hunting them down. They were considered to be extinct until 1987 when the Captain Lionel Cayman survived the sinking of his own ship,provoked by a Kraken after the explorer had left George Town.