Transformation of species

What does species transformation mean?

Art transformation, also known as anagenesis (Greek: ana = upwards; genesis = genesis), is the phenotypic and genotypic alteration of a species without the formation of a new species. The existing species continues to develop.
Species conversion is particularly likely in those environments that provide relatively stable conditions for a long time but at the same time have light, transforming selection pressure in a particular direction. This is especially the case in deep-sea areas.