1.We belong to a class of organisms called deuterostomes.

们属于动物。

2.We’re all what biologists call deuterostomes, a classification that has to do with how we develop as embryos.

们都是生物学家所说动物，这种分类与们作为胚胎发育方式有关。机翻

3.In fact, the earliest deuterostomes might share common traits like openings that they used to help with filter feeding.

事实上，最早氘可能具有共同特征， 例如它们用来帮助滤食开。机翻

4.The most widely-used definition of deuterostome has to do with how our mouths and — the SciShow comments’ favorite term — anuses develop.

最广泛使用动物定义与们嘴巴和——SciShow 评论最喜欢术语——肛门发育方式有关。机翻

5.So, these scientists think S. coronarius could be one of the earliest deuterostomes, based on comparisons of more than 60 features to other living creatures and fossils.

因此，这些学家认为 S. coronarius 可能是最早动物之一，基于与其他生物和化石 60 多种特征比较。机翻