Do Fish Dream?

The video explores the concept of dreaming in animals, particularly focusing on fish. It discusses human sleep cycles, especially the REM phase, and compares them to fish sleep patterns. Research on zebrafish shows that they have sleep states similar to humans, suggesting that dreaming might be possible in fish. The study uses advanced techniques to observe brain activity in fish, highlighting evolutionary links between fish and human sleep.

How do researchers suggest that the sleep patterns of fish may have evolved?

What does the study suggest about the possibility of fish dreaming?