What does it take for a species of tortoise to be classified as a separate species on its own? How's it all work?
For example the Redfoot(Chelonoidis carbonaria) and the yellowfoot( Chelonoidis denticulata) are classed as separate species. Yeah obviously there are color, morph and even social differences but this could also be evolution. If so at what point do they qualify as separate species, or is there some sort of internal diagnosis differential that has to be met to qualify as it's own species.
For example the Redfoot(Chelonoidis carbonaria) and the yellowfoot( Chelonoidis denticulata) are classed as separate species. Yeah obviously there are color, morph and even social differences but this could also be evolution. If so at what point do they qualify as separate species, or is there some sort of internal diagnosis differential that has to be met to qualify as it's own species.