its the unicellular organism that came first, then grew into more complex animals, fish got out of the water and birds grew wings. evolutions transform slowly the different species to adapt to different climate.

since then, and more recently, the sometimes sapiens human being we are part of, figured out how to tweak this. and started to create their own species.

pretty much all the dog races you know, are man-made. the chicken we eat, never lived in a natural environment. its engineered for food. they once tried to make it feather-less to skip that process and save money, but chickens were cold. and it ended up costing more in heating. so they have up.

I'm not a specialist in the domain, so I don't fully understand HOW THE FFFF in the HHHH they are able to do that.. but my understanding, is they tweak in the egg.

so the egg came first.