200-million-year-old fossil shows leeches were marine predators, NOT the blood-suckers we know today Times of IndiaThis Leech Had an Appetite for Something Other Than Blood The New York TimesLeeches May Be 200 Million Years Older Than We Thoughtāand Havenāt Always Sucked Blood Smithsonian MagazineAncient Leeches Werenāt BloodsuckersāThey Were Way Creepier VICELeeches Didn’t Always Suck Blood ā Ancient Fossils Reveal They Swallowed Prey Whole Discover Magazine