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Ancient Fish Teeth: Sensing, Not Biting, Redefines Evolution

6/12/2025

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Summary

Story summary

Ancient fish had a surprising secret: their teeth weren't designed for biting but for sensing their surroundings. A groundbreaking study uncovered that the dentine in these teeth was linked to the exoskeletons of armored fish, reshaping our understanding of vertebrate evolution and pushing its timeline back millions of years.

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Story summary

Ancient fish had a surprising secret: their teeth weren't designed for biting but for sensing their surroundings. A groundbreaking study uncovered that the dentine in these teeth was linked to the exoskeletons of armored fish, reshaping our understanding of vertebrate evolution and pushing its timeline back millions of years.