Overview

• Scientists studying an octopus named Costello noticed four instances of erratic behavior upon awakening that resembled a distress response.
• The behavior included changing color, shooting ink, and flailing arms despite no threat present.
• Costello's erratic awakenings could suggest the octopus was experiencing a dream-like state or memories of a previous traumatic event.
• However, the behavior may also be attributed to the octopus aging and becoming senile.
• Further research is needed to determine the cause of Costello's unusual behavior and whether octopuses can dream.