Ankylosaurus (ANK-ill-oh-SORE-us) means "fused lizard." It had bony plates called scutes (SKOOTS) that protected its body. The scutes were fused or joined together like a suit of armor across its back and on most of its body. This dinosaur had a heavy, short, and wide body. It was built like an armored tank! Scientists think it was not a very smart dinosaur. The bones of its skull were very thick. There wasn't enough room inside for a big brain. It ate plants like ferns and small shrubs. It probably ate cones, roots, and sticks, too. It must have needed to eat a lot of .....