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Jim

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  • How did our human ancestors evolve to have better medicine adsorption under the tongue?

    We are sometimes prescribed medicines that we place under our tongue for faster absorption.  But these medicines are very recently developed, they did not exist 500,000 years ago.  And yet, in our evolution somehow absorbing substances faster under our tongue was a trait that was selected for, in increasing our our ancestors' ability to reproduce as we evolved. Why would such a trait become predominant?

    6 AnswersBiology1 week ago