The Spinosaurus, with its huge sail on its back, is the largest known carnivorous dinosaur. Readers learn interesting facts such as these through the informative main text about these prehistoric creatures.

Includes index.

What were dinosaurs? -- When were dinosaurs alive? -- How do we know ...? -- Spinosaurus -- What did Spinosaurus look like? -- Where did Spinosaurus live? -- What did Spinosaurus eat? -- Was Spinosaurus the biggest meat eater? -- A closer look at Spinosaurus -- Help Spinosaurus catch some fish -- Glossary -- Index.