Why is along came used in this way in the following sentence?
Probably back in some previous biology course, you learned that snakes evolved from lizards and that the first snakes weren't venomous and then along came more advanced snakes, the venomous snakes.
What is the differences between come along and along come? Is it inversion? What is the meaning? How could I use it?
I know several ways of using inversion but I have not seen anything like this.