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Why rats can't vomit, and why humans do

Rats can't vomit. They can't burp either, and they don't experience heartburn. Rats can't vomit for several related reasons: (1) Rats have a powerful barrier between the stomach and the esophagus. They don't have the esophageal muscle strength to overcome and open this barrier by force, which is necessary for…
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Science & Space2008

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Sep 25, 2008Why rats can't vomit, and why humans do by marketer5220

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