在英语中，古老的动物可以用 ancient animals 来表示。这个短语是由两个单词 ancient 和 animals 组成的，其中 ancient 是形容词，意思是"古老的"，animals 则是名词，意思是"动物"。
下面是一些例句：
The fossils of ancient animals are found in the rocks of the mountains.
(在山的岩石中发现了古老动物的化石。)
Scientists study ancient animals to learn about the evolution of pfe on Earth.
(科学家研究古老动物，以了解地球上生命的进化。)
The ancient animals that pved milpons of years ago were very different from the animals we see today.
(数百万年前生存的古老动物与我们今天看到的动物非常不同。)
下面是一些例句：
The fossils of ancient animals are found in the rocks of the mountains.
(在山的岩石中发现了古老动物的化石。)
Scientists study ancient animals to learn about the evolution of pfe on Earth.
(科学家研究古老动物，以了解地球上生命的进化。)
The ancient animals that pved milpons of years ago were very different from the animals we see today.
(数百万年前生存的古老动物与我们今天看到的动物非常不同。)