fossilized dimetrodons
化石化的双脊龙
the dimetrodon
双脊龙
dimetrodons hunted
双脊龙捕猎
prehistoric dimetrodons
史前双脊龙
saw a dimetrodon
看到一只双脊龙
dimetrodons basked
双脊龙晒太阳
sail-backed dimetrodons
背帆状的双脊龙
two dimetrodons
两只双脊龙
dimetrodons fought
双脊龙搏斗
ancient dimetrodons
古代双脊龙
dimetrodons were large carnivorous reptiles that lived during the permian period.
异齿龙是生活在二叠纪时期的大型肉食性爬行动物。
scientists discovered dimetrodons fossils in texas and oklahoma.
科学家在德克萨斯州和俄克拉荷马州发现了异齿龙的化石。
the dimetrodons walked on four legs and had a large sail on their backs.
异齿龙用四条腿行走，并且背部有一个巨大的帆。
dimetrodons were apex predators in their ecosystem.
异齿龙在其生态系统中是顶级捕食者。
many dimetrodons species existed during the permian era.
二叠纪时期存在许多种异齿龙。
the dimetrodons became extinct at the end of the permian period.
异齿龙在二叠纪末期灭绝。
researchers study dimetrodons to understand prehistoric life.
研究人员研究异齿龙以了解史前生命。
dimetrodons are often confused with dinosaurs.
异齿龙常常与恐龙混淆。
the dimetrodons skeleton is displayed in many natural history museums.
许多自然历史博物馆都展出了异齿龙的骨架。
unlike mammals, dimetrodons were reptiles.
与哺乳动物不同，异齿龙是爬行动物。
the dimetrodons lived over 270 million years ago.
异齿龙生活在2.7亿年前。
dimetrodons had sharp teeth for catching prey.
异齿龙有锋利的牙齿用于捕食猎物。
fossilized dimetrodons
化石化的双脊龙
the dimetrodon
双脊龙
dimetrodons hunted
双脊龙捕猎
prehistoric dimetrodons
史前双脊龙
saw a dimetrodon
看到一只双脊龙
dimetrodons basked
双脊龙晒太阳
sail-backed dimetrodons
背帆状的双脊龙
two dimetrodons
两只双脊龙
dimetrodons fought
双脊龙搏斗
ancient dimetrodons
古代双脊龙
dimetrodons were large carnivorous reptiles that lived during the permian period.
异齿龙是生活在二叠纪时期的大型肉食性爬行动物。
scientists discovered dimetrodons fossils in texas and oklahoma.
科学家在德克萨斯州和俄克拉荷马州发现了异齿龙的化石。
the dimetrodons walked on four legs and had a large sail on their backs.
异齿龙用四条腿行走，并且背部有一个巨大的帆。
dimetrodons were apex predators in their ecosystem.
异齿龙在其生态系统中是顶级捕食者。
many dimetrodons species existed during the permian era.
二叠纪时期存在许多种异齿龙。
the dimetrodons became extinct at the end of the permian period.
异齿龙在二叠纪末期灭绝。
researchers study dimetrodons to understand prehistoric life.
研究人员研究异齿龙以了解史前生命。
dimetrodons are often confused with dinosaurs.
异齿龙常常与恐龙混淆。
the dimetrodons skeleton is displayed in many natural history museums.
许多自然历史博物馆都展出了异齿龙的骨架。
unlike mammals, dimetrodons were reptiles.
与哺乳动物不同，异齿龙是爬行动物。
the dimetrodons lived over 270 million years ago.
异齿龙生活在2.7亿年前。
dimetrodons had sharp teeth for catching prey.
异齿龙有锋利的牙齿用于捕食猎物。
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