Ancient “Question Mark” Mystery Solved in 480-Million-Year-Old Fossils

Rare fossils reveal that worms managed to survive multiple mass extinction events. A recent scientific investigation has revealed a surprising discovery: a parasite that still targets modern oysters began infecting shellfish hundreds of millions of years before the age of dinosaurs came to an end. The study, published in iScience, examined 480-million-year-old fossil shells from [...]