Yeah you're mistaken.
Speciation is a holistic idea you can only really discriminate against with hindsight.
There is still no good, workable definition of species.
Like Baazl said, you really don't know how complicated evolution is until you get into it. There's no good way to just launch into it. I tried, but I really feel like nobody is even reading what I write. Funny, reminds me of when I was teaching the undergrad class.
I study bacteria, and it's the one field in which evolution could not be clearer. Viruses are even better, and if you read up on HIV you can see how it has evolved and influenced human evolution as well.
There's also a lot of plant / insect coevolution, which is another clear-cut example of organisms like ants and flowers moving into directions away from a general species into niches.
Coevolution and Pollination