An curved arrow pointing right. 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 — ...

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 ...

For more than a century, the largest dinosaurs have seemed like a closed club dominated by a few famous sauropods with necks as long as city buses. Now a neglected set of bones is forcing ...

The meat-eating dinosaurs known as theropods that roamed the ancient Earth ranged in size from the bus-sized T. rex to the smaller, dog-sized Velociraptor. Scientists puzzling over how such wildly ...

A single fossilized footprint, roughly 1 meter long, has pushed paleontologists to redraw the upper limits of dinosaur size after sitting in storage for nearly two decades. The track, nicknamed ...

Remains of a petite dinosaur reveal that some of the ancestors of birds had already shrunk in size before flight evolved. The dinosaur, a mere 2 feet long (70 centimeters) and weighing the equivalent ...