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Continue to ChatSome animals on Earth regurgitate as opposed to vomit, i.e., stomach contents flow up into the esophagus without any forceful abdominal contractions. What I experienced in zero gravity was similar to this, expulsion without the heaves. - Vanna Bonta from https://whatsmyquote.com/quote/some-animals-on-earth-regurgitate-as-opposed-to-vomit-i-e-stomach-contents-flow-up-into-the-esophagus-without