pedograph

例句：

1. 1. The paleontologist is studying the fossils of dinosaurs.
   古生物学家正在研究恐龙的化石。
2. 2.The reptiles are found in many different habitats around the world.
   爬行动物分布在世界各地不同的栖息地中。
3. 3.The paleontologists have discovered new species of reptiles in Africa.
   古生物学家在非洲发现了新的爬行动物物种。