What are these huge, strange animals with four legs, a shell, and a spiked tail? Meet the glyptodont, a prehistoric animal from the time of the mammoths. Scientists have found out many facts about this incredible animal, and here are a few of them. Find out: What did a glyptodont eat? How large were glyptodonts? How fast could they move? What is their shell made of? What were all the tiny holes in the shell for? Find out more about the glyptodont and amaze your family and friends with these fun facts. LearningIsland.com believes in the value of children practicing reading for 15 minutes every day. Our 15-Minute Books give children lots of fun, exciting choices to read, from classic stories, to mysteries, to books of knowledge. Many books are appropriate for hi-lo readers. Open the world of reading to a child by having them read for 15 minutes a day.