The armered dinosaurs are general, and Ankylosauruses, no exception here, were not bread dinosaurs.

有甲壳的很常见，甲也不例外，不会坐以待毙。

They all evolved from crustaceans that were longer and had tails, with a body plan more like a shrimp or a lobster.

它们都是从更长且有尾的甲壳类动物进化而来的，身体结构更像虾或虾。

The fact that it had a plastron without a carapace was pretty strong evidence for the developmental biologists' hypothesis, that the plastron evolved first.

它有个没有甲壳的腹甲这有力地证明了发育生物学家的假设，即腹甲首先进化。

Flies have no bones inside their body; but they have a hard skin like a shell all over the outside, and their flesh is inside this hard skin.

苍蝇的身体里没有骨头, 但是外面有层甲壳样的硬皮, 硬皮的里面是肉。