4) The heart.

The Kraken's petrified heart no longer beats, but his love for the sea lives on. His red blood has been replaced by emotions flowing through his body like waves on the ocean. He longs for a time when the environment was a natural part of people's hearts. In the old days, there was no plastic or toxic waste created by humans. "I have a heartfelt plea to all people: Stop throwing things into the sea that harm the plants and fish."