Dinosaurs That Survived One Extinction Event Only to Face Another

Long before the famous asteroid sealed the fate of the dinosaurs 66 million years ago, some lineages had already survived earlier planetary upheavals — adapting through volcanic winters, acidifying oceans, and shifting climates only to meet their end in a later catastrophe. Emerging paleontological research reveals that extinction is rarely a single verdict but often a cumulative sentence, handed down across geological time. The dinosaurs who endured the most, it turns out, were not spared — they were simply the last to fall.