Here's how a quest develops - my number one target in this trip. The first picture is an old one, an adult Chromaphyosemion biteniatum from Ijebu Ode in Nigeria, near the world city of Lagos. I kept that species for 10 years, and a second local Nigerian variety of the same species, "Lagos Red" for 15. There were subtle differences. The Ijebu Ode had more colours, and the Lagos Red had longer fins with less blue. They bred true to their geographic form.
With some imagination, you could wonder if well after humans are extinct, if they would diverge and become independent species. I