For 25 years, Dr. David Scheel of Alaska Pacific University has studied octopodes.
When he got divorced, his ex-wife got all of the living room furniture. This freed up a lot of space. He decided to fill it with an enormous saltwater aquarium. That's when Heidi the octopus came into his life.
He watches Heidi a lot. During one scene in the PBS show Nature, Scheel describes watching Heidi sleep. She changes color several times. Scheel thinks that she's dreaming and narrates the dream.
-via Twisted Sifter