placerias 中文意思是什麼
placerias
解釋
布拉塞龍-
This episode is set 220 million years ago, when a variety of creatures battle to survive the dry season in the river valley : bulky placerias graze the prairies and primitive burrowing mammals raise their young, as the agile and aggressive coelophysis learn to hunt in flocks and drive out the giant predator, postosuchus
在二億二千萬年前，一群生物在一河谷的旱季中掙扎求存。布拉塞在大草原吃草，原始的哺乳類動物在地洞內孕育它們的子女，具侵略性的虛形學會了如何聯群覓食，以及怎樣去驅趕巨型的捕獵者波斯特鱷。
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