Great opening by Carolyn Wilke:

"Costello the octopus was napping while stuck to the glass of his tank at the Rockefeller University in New York. He snoozed quietly for half an hour, and then entered a more active sleep stage, his skin cycling through colors and textures used for camouflage — typical behavior for a cephalopod.
But soon things became strange."

https://www.nytimes.com/2023/05/25/science/octopus-nightmare-dream.html