A ScienceDaily report summarizes research claiming collagen fragments were detected in a 66-million-year-old Edmontosaurus fossil. We unpack what the source says, why contamination is the central alternative explanation, what the finding could change for evolutionary inference, and what it definitely does not prove.

A ScienceDaily report highlights the hunt for ~1.7-billion-year-old microfossils that may capture early eukaryotes—the cellular step that later enabled animals, plants, and fungi. Here’s what the source claims, what’s established vs uncertain, and how to read these discoveries without overhyping them.