I think it's definitely a fashion over form type thing.

我认为这绝对是一种超越形式的时尚。

I wanted to be here amongst the people that I grew up with, in order to form some type of unity.

我想和我一起长大的人在这里，以形成某种形式的团结。

But birds, and their predecessors the dinosaurs, eventually started forming a different type of egg - one that had calcium in the shell.

但是鸟类， 以及它们的祖先恐龙，最终开始形成一种不同类型的蛋——一种蛋壳中含有钙质的蛋。

The better part of my companion's character, if it have a better part, is that which usually comes uppermost in my regard, and forms the type whereby I recognise the man.

我同伴性格中最好的部分， 如果有更好的部分的话，通常是我最看重的部分， 并且形成了我认出这个人的类型。