For more than a century, the largest dinosaurs have seemed like a closed club dominated by a few famous sauropods with necks ...

Most of us imagine dinosaurs as the huge, towering prehistoric beings that once walked the Earth. But it turns out that dinosaurs were actually a wide range of sizes — and some of them weren’t much ...

Just last week, a newly discovered dinosaur named Dreadnoughtus schrani laid claim to the title of world’s largest terrestrial animal. But how big is that, exactly ...