Imagine thinking dino ancestors were tiny, only to find a 225-million-year-old leg bone that says otherwise! Scientists just re-examined a forgotten fossil from Zambia and realized it belonged to a massive silesaur—one of the earliest dino relatives. Turns out, early dinos might’ve started big and shrunk over time. This one bone is flipping the whole dino timeline on its head. Who knows what else is hiding in museum drawers? #Science #Dinosaurs #FossilFind