• TrackinDaKraken@lemmy.world
    link
    fedilink
    English
    arrow-up
    8
    ·
    2 days ago

    My idea is that yawing helps sync our internal clocks. So, we sleep at the same time, and wake up at the same time. That way, no one is left behind when the group starts moving to the next waterhole, or feeding ground.

    • aphonefriend@lemmy.dbzer0.com
      link
      fedilink
      arrow-up
      1
      ·
      14 hours ago

      Except nocturnal circadian cycles were evolutionary in nature. The pack wanted someone awake at all times to protect from predators.