200-million-year-old fossil shows leeches were marine predators, NOT the blood-suckers we know today

A remarkable fossil discovery has rewritten leech history. These creatures are now known to be over 200 million years older than previously believed. Early leeches were not blood-feeders but hunted small marine animals. This finding offers new perspectives on their ancient diets and ecological roles. The fossil showcases key differences from modern leeches, highlighting their evolutionary journey.