I would like to speak concerning the parallel development of the universe of matter as you know it, the universe of negative matter, and what is truly the universe of dreams.

我想谈谈关于你们所知道的物质宇宙、负物质宇宙以及真正的梦宇宙的平行发展。

They are an example of a common theme in evolution, the more or less parallel development of different types of body structure and function for the same reason-in this case, for flight.

它们是进化的普通案例，不同身体结构或功能因飞行而平行发展。