727 place 0

745 Before they sucked blood, leeches were ocean hunters

ScienceDaily
ScienceDaily · 10/01/2025 09:22 EDT

A 430-million-year-old fossil has rewritten leech history, showing they are at least 200 million years older than previously believed. Unlike today’s bloodsucking leeches, their ancient ancestors likely hunted small marine animals using a tail sucker rather than piercing skin.

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