Or maybe there was some other evolutionary pressure for archosauromorphs to lay eggs.

或者也许还有一些其他的进化压力让主龙类动物产卵。

But there’s one huge exception: birds, and the larger group they belong to, called archosauromorphs, which also includes crocodiles and some dinosaurs.

但有一个巨大的例外：鸟类， 以及它们所属的更大的类群，称为主龙类， 其中还包括鳄鱼和一些恐龙。