T. rex didn’t have the ability to clamp its jaws to crush bones, like some mammals do today. Instead, it used its powerful bite and strong teeth to pulverize the bones of its prey.

Some early relatives of giant long-necked sauropods may have used an unexpected biological approach to grow to such a large size. This illustration shows how a newly described species, called Ingentia prima, may have looked.

Small species of oviraptorosaurs (dinosaurs that include the ancestors of birds) sat on their eggs. That’s what the dinosaur in the background illustration is doing. But larger species, like the one in the front illustration, sat in the center of a ring of eggs so they wouldn’t crush them.