Why Do We Sleep?
No one knows for certain why we sleep, but we all need it. Some researchers think that it provides essential rest for both the body and the
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Rest
Do Fish Sleep?
Yes, fish do sleep. Because they have no eyelids, they cannot close their eyes, and it may look as though they never sleep. Many fish sleep
How Do Dolphins Sleep in the Ocean?
How Do Dolphins Sleep in the Ocean? Dolphins don’t sleep soundly at night like we do. When it’s time to rest, a dolphin undergoes an unusu