Bluella

Bluella was a female whale who washed up on the shore of Springfield. She was found and named by Lisa Simpson who sort of adopted her. Homer and many other Springfieldians attempted to get it back into the sea but failed. Lisa had a dream that she was airlifted back into the sea and jumped into the stars, which was shaped like the sea.

Eventually, Bluella died and was blown up to get rid of the dead body. It took a few attempts to do so though. Bluella lived on through many products in Springfield. She also lived on through her two children.