Crustaceans | Crustacea Drawings & Dimensions

Crustaceans, belonging to the class Crustacea, are a diverse group of arthropods that include familiar creatures like crabs, lobsters, shrimp, and barnacles. With a fossil record dating back to the Cambrian period, over 500 million years ago, they have evolved into an estimated 67,000 species.

甲壳动物，隶属于甲壳纲，是种类繁多的节肢动物群体，其中包括我们熟悉的蟹、龙虾、虾和牡蛎等生物。其化石记录可追溯至寒武纪时期，距今约5亿年前，已演化出约67,000个物种。