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Two distinct sleep stages emerge in jumping spider, including a REM-like state

Image: Phys.org

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  • Phys.org · October 26, 2026 19:00
    Humans and other vertebrates go through various stages of sleep, including REM (rapid eye movement) sleep characterized by rapid eye movements and muscle twitches. Can a similar sleep state be observed in spiders? Researchers from the Institute of Organismic Biology at the University of Bonn…