Brainless Jellyfish Could Help Reveal Why We Sleep

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Cassiopea jellyfish (Photo Credit: Peter Holderness/Caltech

The reason animals “waste” so much time sleeping has always been somewhat of a mystery to scientists. The popular belief is that resting rids brain cells of toxins, helps consolidate fresh memories, and prepares the mind for a new day of learning. However, a new study by research students at the California Institute of Technology has unveiled it’s not just creatures with brains that snooze - even the brainless jellyfish need their zzz’s!

댓글 490개
  • Noelle7년 이하
    Cool and interesting 😀
    • lol7년 이하
      who plays minecraft?
      • lol7년 이하
        lol
        • aric7년 이하
          i never sleep!
          • Efs약 7년
            My dog naps sooooo much. She is asleep right now.
            • felineactivist
              felineactivist약 7년
              When the jellyfish swam back to the bottom one landed right side up instead of upside down. I've observed that my fish go to sleep after the tank lights automatically turn off every night. They'll swim under the tree trunk and just stay there, not moving at all. Same with the freshwater snails. They curl up inside their shells until morning. Some of my neon tetras are late sleepers- during the weekends after breakfast at 8 and 9 am they're still sleeping. Some of them sleep till noon!
              • ...약 7년
                poor yellyfish
                • dogers76_roblox
                  dogers76_roblox약 7년
                  it looks like noodles
                  • inklinggirl8126
                    inklinggirl8126약 7년
                    Awesome!!!!
                    • Joe약 7년
                      I think its really cool

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