Question: Is it ever explained why Dory has her memory problems? Why she has such an incredibly bad memory, even for one of her species? Head injury, exposure to a chemical, genetic?
Chosen answer: In the absence of a neuropsychological work-up, we have only Dory's word for it: "I have short term memory loss...It runs in my family...at least, I think it does." So, Dory believes it to be genetic. At least, I think she does.
Answer: Because she has short term memory loss.
Question: In the post-credit scene, The Tank gang are seen still trapped in their now algae-covered plastic bags as they reach California. Since this movie takes place a year after "Finding Nemo" (2003), how did these fish survive without eating anything for a whole year?
Answer: Algae on the inside of the bag?
Chosen answer: Kathy "Chickenfish" is a reoccurring, although minor character. She was in Finding Nemo as well. She's blue and green with spots and has buck teeth. She was concerned about Mr. Ray coming back from migration. (In Finding Nemo she was the one who said "Oh, my gosh! Nemo's swimming out to sea!").
Bishop73