There is no first chicken. There were proto-chickens, and now there are ‘what we currently call chickens’.
We humans tend to think of singular entities and beginnings and ends. I think maybe that such thinking is fuelledby our hard-to-escape projection. As in ‘we are born, we are us, and then we die’? There is no time in our lives where we ‘evolved’. We were ‘created’ and then we faced entropy. This is a very different experience to the foregone millennia and epochs of speciation/evolution. It’s lot for us to wrap our minds around in a short lifetime.
Discounting poetic/journo license there also is no ‘first human’. Evolution happens to populations. Likewise, do we ask – ‘What came first, the human or the womb? The sperm or the egg?’
We know that the wheel came before the bike, but that is a slightly different matter. Unless you were to stretch the analogy to include wheel-less proto-bikes such as pre-wheeled hobby-horses. In fact that may be a decent analogy for those who are stuck with ‘creator’ thought? But my intention here isn’t a setup for a ‘what came first, the hobby-horse or the hobby-horse-builder?’-type question. Again, anthropocentrism trips us up.
But there was no ‘first chicken’, AFAIK.