Science
Sleeping octopuses might experience fleeting dreams – new study – The Conversation UK
Colour-changing patterns in snoozing octopuses are characteristic of two alternating sleep states.

A couple of years ago an octopus named Heidi was filmed changing colours as she slept. The footage shows her flickering from a ghostly shade of white to yellow and then turning a deep shade of burgundy before morphing into a mottled green pattern.
The video went viral. Millions were instantly mesmerised by Heidi in her slumber, particularly because the narrator speculates that shes having a vivid dream dreaming that shes hunting and eating a crab, like a snoozing dog chasing dream rabbits.
Was…
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