Skeptophilia
Fighting Gullibility with Sarcasm, 6 days a week
Showing posts with label
hydras
.
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Showing posts with label
hydras
.
Show all posts
Friday, May 21, 2021
A little life, rounded with a sleep
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An unsolved mystery of biology is the question of why we -- and just about every other animal studied -- have to sleep. I've looked at t...
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