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

有壳的恐龙很，龙也不例外，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.

们都是从更长且有尾的壳类动物进化而来的，身体结构更像虾或龙虾。

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

有个没有壳的腹这事实有力地证明了发育生物学家的假设，即腹首先进化。

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, 但是外面有层壳样的硬皮, 硬皮的里面是肉。