这是一本植食恐龙科普书，54种植食恐龙聚集于此；这也是一个好玩儿的排行榜，比一比这些植食恐龙的防御力谁强谁弱。书中在介绍植食恐龙的过程中，还穿插了大量关于恐龙常识、恐龙化石挖掘故事等描述，旨在以生动的内容引起小恐龙迷的兴趣。
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