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Study Reveals Evolutionary Link Between Anuses and Reproductive Organs

4/5/2025

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Summary

Story summary

A groundbreaking study from the University of Bergen reveals that human anuses might have evolved from reproductive organs originally used for sperm expulsion. By examining xenacoelomorphs, which possess a single exit for both digestion and waste, researchers suggest that the split between digestive and reproductive systems happened much later in our evolutionary journey.

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Story summary

A groundbreaking study from the University of Bergen reveals that human anuses might have evolved from reproductive organs originally used for sperm expulsion. By examining xenacoelomorphs, which possess a single exit for both digestion and waste, researchers suggest that the split between digestive and reproductive systems happened much later in our evolutionary journey.