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Study Reveals Anus Evolution from Sperm Openings

4/1/2025

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Summary

Story summary

A groundbreaking study from the University of Bergen reveals that anuses may have evolved from sperm release openings in xenacoelomorphs, distant relatives of flatworms. These fascinating creatures, which use their mouths for various functions, highlight how the development of separate digestive and reproductive openings paved the way for larger animal sizes.

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Story summary

A groundbreaking study from the University of Bergen reveals that anuses may have evolved from sperm release openings in xenacoelomorphs, distant relatives of flatworms. These fascinating creatures, which use their mouths for various functions, highlight how the development of separate digestive and reproductive openings paved the way for larger animal sizes.