I just wanted to add this short note on genetically-modified organisms (GMOs). The issue of multi-colored variants of a single species leads naturally to the thought, often expressed, that GMOs are not bad because humans have been genetically modifying organisms since forever, and it is through genetic modification that we got different colored carrots.
Well, I vehemently disagree! In the case of colored carrots, humans are simply mixing different combinations of already existing genetic information within the carrots through selective breeding. A monster chimera can't come into existence