Laughing 100 times burns approximately the same number of calories as 15 minutes on a stationary bicycle.
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Quantum particles can influence each other instantly across distance.
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The rubber hand illusion shows how easily the brain can adopt a fake limb.
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The axolotl can regenerate limbs and spinal tissue.
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Wood frogs can survive freezing by producing natural antifreeze chemicals.
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In 1954, a scientist allowed himself to be bitten by mosquitoes to study malaria transmission.
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The axolotl can regenerate limbs and even parts of its heart.
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Some metals explode when they touch water.
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The Harlow monkey experiments studied attachment and maternal bonding.
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