Ankylosaurus are well-known dinosaurs for its unique physical features. They had an armoured back to defend themselves from predators, alongside a weaponised tail to scare off threats! They were short and flat yet still massive – only 1.2 metres (4 ft) tall, but 10.7 metres (35ft) long, and 1.8 metres (6 ft) wide! Only a handful of their fossil fragments have been discovered, which means there’s still a lot to find out about this fascinating dinosaur.