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It Turns Out the Appendix May Serve an Important Biological Function After All

Researchers at Midwestern University conducted an analysis on the appendix over the past 11 million years, tracing the appearance, disappearance, and reemergence of the organ in several mammal species.



Publishing the new research in the journal Comptes Rendus Palevol, the team found that the the appendix evolved independently in a number of mammal lineages, over 30 separate times. Once the appendix appears, the analysis revealed that it almost never disappears, suggesting that the organ likely serves an adaptive purpose.


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