Whenever Ankylosaurus is mentioned—in basic cable documentaries, cheap time-travel novels, or elsewhere—you might as well just start counting the seconds until somebody inevitably compares it ...

The largest Ankylosaurus specimen ever found was 20.5 feet (6.25 meters) long, 5.6 feet (1.7 m) tall at the hips and 4.9 feet (1.5 m) wide, according to the study, published in the Canadian ...

Fossils suggest its tail had sharp edges, unlike those seen in other dinosaurs, and experts believe it was used as a weapon to defend themselves from other dinosaurs! Find out more here.