Victoria Arbour

Assigned to the new ichnospecies Ruopodosaurus clava, these dinosaur footprints found in northeastern British Columbia and northwestern Alberta confirm the presence of ankylosaurid ankylosaurs in the mid-Cretaceous period of North America.

Studies of the horns, spikes, plates and clubs of dinosaurs could help settle a long-standing debate over their function

An accidental discovery of a 3D fossil reveals the dinosaur's mysterious death

Armored dinosaurs called ankylosaurs might have wielded sledgehammer-like tail clubs against one another in conflict, in addition to warding off predators like the Tyrannosaurus rex.

Damage to the spikes on the back of a fossil of a Zuul crurivastator suggest that these armoured dinosaurs didn't use their tail clubs to fend off Tyrannosaurs but to fight each other

An exposed prehistoric seafloor is a hotspot for ancient whale remains, and now an international team is helping unravel their mysteries.

In a prehistoric forest, some 80 million years ago, a stocky, 5-meter-long armored dinosaur with a spiky back ambles about on four short legs, slowly chewing on a snack of plant material.

A dinosaur named for a demon dog in "Ghostbusters" had a sledgehammer attached to its rear. A new study found it could both shatter shins and woo potential mates.

From locking horns to biting each other in the face, this is how dinos of the same species battled

Ankylosaurid dinosaurs were heavily armored herbivores with tails modified into club-like weapons.

An exposed prehistoric seafloor is a hotspot for relics, and now an international team is helping unravel their mysteries

Could an anti-Castro agent's files hold the key to a lingering mystery?

The evolution of this weapon may have had little to do with threats from predators.